I get this message when I try to migrate the .pst file.

Here is the log file.
11-08-2007 08:28:38 [2340]: ZCSPSTImportWizard-4.5.6_GA_1023 Version 4.5
11-08-2007 08:28:38 [2340]: Creating / starting worker thread
11-08-2007 08:28:38 [2340]: Dispatching work to worker thread
11-08-2007 08:28:38 [1616]: Worker thread started
11-08-2007 08:28:38 [1616]: Work arrived...C:\Documents and Settings\Mary Friestedt\My Documents\backup.pst mary@friestedt.com
11-08-2007 08:28:38 [1616]: Using default store
11-08-2007 08:28:38 [1616]: Logging on to zimbra server (74.94.99.212:80)
11-08-2007 08:28:38 [1616]: Replicating folder hierarchy
11-08-2007 08:28:38 [1616]: (FR): Entering folder: /
11-08-2007 08:28:38 [1616]: (FR): Detected special folder (root)
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Deleted Items
11-08-2007 08:28:38 [1616]: (FR): Detected special folder (trash)
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Deleted Items
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Inbox
11-08-2007 08:28:38 [1616]: (FR): Detected special folder (inbox)
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Entering folder: TESL
11-08-2007 08:28:38 [1616]: (FR): Handling user-defined folder
11-08-2007 08:28:38 [1616]: (FR): Folder exists on zimbra - fid is 260
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder TESL
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Breast Cancer
11-08-2007 08:28:38 [1616]: (FR): Handling user-defined folder
11-08-2007 08:28:38 [1616]: (FR): Folder exists on zimbra - fid is 261
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Breast Cancer
11-08-2007 08:28:38 [1616]: (FR): Entering folder: NYT
11-08-2007 08:28:38 [1616]: (FR): Handling user-defined folder
11-08-2007 08:28:38 [1616]: (FR): Folder exists on zimbra - fid is 262
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder NYT
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Spam Report
11-08-2007 08:28:38 [1616]: (FR): Handling user-defined folder
11-08-2007 08:28:38 [1616]: (FR): Folder exists on zimbra - fid is 263
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Spam Report
11-08-2007 08:28:38 [1616]: (FR): Entering folder: SD Birds
11-08-2007 08:28:38 [1616]: (FR): Handling user-defined folder
11-08-2007 08:28:38 [1616]: (FR): Folder exists on zimbra - fid is 264
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder SD Birds
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Inbox
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Outbox
11-08-2007 08:28:38 [1616]: (FR): Handling user-defined folder
11-08-2007 08:28:38 [1616]: (FR): Folder exists on zimbra - fid is 265
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Outbox
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Sent Items
11-08-2007 08:28:38 [1616]: (FR): Detected special folder (sent)
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Sent Items
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Calendar
11-08-2007 08:28:38 [1616]: (FR): Detected special folder (calendar)
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Calendar
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Contacts
11-08-2007 08:28:38 [1616]: (FR): Detected special folder (contacts)
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Contacts
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Journal
11-08-2007 08:28:38 [1616]: (FR): Handling user-defined folder
11-08-2007 08:28:38 [1616]: (FR): Folder exists on zimbra - fid is 266
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Journal
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Notes
11-08-2007 08:28:38 [1616]: (FR): Handling user-defined folder
11-08-2007 08:28:38 [1616]: (FR): Folder exists on zimbra - fid is 267
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Notes
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Tasks
11-08-2007 08:28:38 [1616]: (FR): Handling user-defined folder
11-08-2007 08:28:38 [1616]: (FR): Folder exists on zimbra - fid is 15
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Tasks
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Drafts
11-08-2007 08:28:38 [1616]: (FR): Detected special folder (drafts)
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Drafts
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Junk E-mail
11-08-2007 08:28:38 [1616]: (FR): Detected special folder (spam)
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Junk E-mail
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Email Archive
11-08-2007 08:28:38 [1616]: (FR): Handling user-defined folder
11-08-2007 08:28:38 [1616]: (FR): Folder exists on zimbra - fid is 268
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Work
11-08-2007 08:28:38 [1616]: (FR): Handling user-defined folder
11-08-2007 08:28:38 [1616]: (FR): Folder exists on zimbra - fid is 269
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Work
11-08-2007 08:28:38 [1616]: (FR): Entering folder: Personal
11-08-2007 08:28:38 [1616]: (FR): Handling user-defined folder
11-08-2007 08:28:38 [1616]: (FR): Folder exists on zimbra - fid is 270
11-08-2007 08:28:38 [1616]: (FR): Child folders will be processed
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Personal
11-08-2007 08:28:38 [1616]: (FR): Leaving folder Email Archive
11-08-2007 08:28:38 [1616]: (FR): Leaving folder /
11-08-2007 08:28:38 [1616]: Importing messages
11-08-2007 08:28:38 [1616]: Progress log is: C:\DOCUME~1\MARYFR~1\LOCALS~1\Temp\ZCSPSTImportWiz ard-4.5.6_GA_1023\454f06e34b754a5d624ec47a33e0ff59_bac kup.status
11-08-2007 08:28:39 [1616]: Zimbra::MAPI::MailboxScanner::Scan. calling NamedProps::Init() using the root store folder
11-08-2007 08:28:39 [1616]: Zimbra::Mapi::NamedProps::Init. NamedProps::Init() succeeded!
11-08-2007 08:28:39 [1616]: Starting mid scan
11-08-2007 08:28:39 [1616]: mid scan ended
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Message d(No Date) fid(006)
11-08-2007 08:28:39 [1616]: Zimbra Exception: message not added, No upload token returned
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Contact d(Sat, 13 Sep 2003 12:47:52 -0000) fid(007) c(Drew Friestedt)
11-08-2007 08:28:39 [1616]: (MI): Batch Added Contact rid(0)
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Contact d(Sat, 13 Sep 2003 12:48:07 -0000) fid(007) c(Joan Descalzi)
11-08-2007 08:28:39 [1616]: (MI): Batch Added Contact rid(1)
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Contact d(Sat, 13 Sep 2003 12:49:02 -0000) fid(007) c(Theia Friestedt)
11-08-2007 08:28:39 [1616]: (MI): Batch Added Contact rid(2)
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Contact d(Sat, 13 Sep 2003 12:49:37 -0000) fid(007) c(Yolanda Weis)
11-08-2007 08:28:39 [1616]: (MI): Batch Added Contact rid(3)
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Contact d(Tue, 11 Nov 2003 03:19:56 -0000) fid(007) c(Joe Sweeney)
11-08-2007 08:28:39 [1616]: (MI): Batch Added Contact rid(4)
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Contact d(Tue, 11 Nov 2003 03:21:53 -0000) fid(007) c(Matt Friestedt)
11-08-2007 08:28:39 [1616]: (MI): Batch Added Contact rid(5)
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Contact d(Tue, 11 Nov 2003 03:22:48 -0000) fid(007) c(Joan Descalzi)
11-08-2007 08:28:39 [1616]: (MI): Batch Added Contact rid(6)
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Contact d(Sat, 15 Nov 2003 17:01:01 -0000) fid(007) c(Carole Brown)
11-08-2007 08:28:39 [1616]: (MI): Batch Added Contact rid(7)
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Contact d(Wed, 7 Jul 2004 04:06:48 -0000) fid(007) c(Ben Lever)
11-08-2007 08:28:39 [1616]: (MI): Batch Added Contact rid(8)
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Contact d(Fri, 8 Oct 2004 18:33:13 -0000) fid(007) c(June Kubo)
11-08-2007 08:28:39 [1616]: (MI): Batch Added Contact rid(9)
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Contact d(Sun, 19 Jun 2005 02:45:40 -0000) fid(007) c(Darcy Johnson)
11-08-2007 08:28:39 [1616]: (MI): Batch Added Contact rid(10)
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Contact d(Sun, 19 Jun 2005 02:47:52 -0000) fid(007) c(Tim & Joy Rogers)
11-08-2007 08:28:39 [1616]: (MI): Batch Added Contact rid(11)
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Message d(Thu, 28 Jul 2005 04:01:25 -0000) fid(260)
11-08-2007 08:28:39 [1616]: Zimbra Exception: message not added, No upload token returned
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Message d(Fri, 29 Jul 2005 04:00:26 -0000) fid(260)
11-08-2007 08:28:39 [1616]: Zimbra Exception: message not added, No upload token returned
11-08-2007 08:28:39 [1616]: (MI): Batch Adding Message d(Sat, 30 Jul 2005 04:00:51 -0000) fid(260)
11-08-2007 08:28:40 [1616]: Zimbra Exception: message not added, No upload token returned
11-08-2007 08:28:40 [1616]: Clearing internal progress log entries
11-08-2007 08:28:40 [1616]: Entries cleared
11-08-2007 08:28:40 [1616]: Error while importing PST C:\Documents and Settings\Mary Friestedt\My Documents\backup.pst: error_threshold_reached. Error limit reached
11-08-2007 08:28:40 [1616]: Too many items failed, exiting
11-08-2007 08:28:40 [1616]: (MI): -------------------------------------------
11-08-2007 08:28:40 [1616]: (MI): -------------------------------------------
11-08-2007 08:28:40 [1616]: (MI): Import stats
11-08-2007 08:28:40 [1616]: (MI): -------------------------------------------
11-08-2007 08:28:40 [1616]: (MI): -------------------------------------------
11-08-2007 08:28:40 [1616]: (MI): Number of items attempted : 12 items
11-08-2007 08:28:40 [1616]: (MI): Number of Errors : 1
11-08-2007 08:28:40 [1616]: (MI): Number of Warnings : 4
11-08-2007 08:28:40 [1616]: (MI): Import duration : 1 seconds
11-08-2007 08:28:40 [1616]: (MI): Import Throughput : 12 msgs/sec
11-08-2007 08:28:40 [1616]: (MI): Total data bytes transferred : 0 bytes
11-08-2007 08:28:40 [1616]: (MI): Data throughput : 0 bits/sec
11-08-2007 08:28:40 [1616]: (MI): Number of batches : 0 batches
11-08-2007 08:28:40 [1616]: (MI): Avg num items per batch : 0 items
11-08-2007 08:28:40 [1616]: (MI): Min num items in a batch : 2147483647 items
11-08-2007 08:28:40 [1616]: (MI): Max num items in a batch : -2147483648 items
11-08-2007 08:28:40 [1616]: (MI): Avg bytes per batch : 0 bytes
11-08-2007 08:28:40 [1616]: (MI): Min bytes in a batch : 2147483647 bytes
11-08-2007 08:28:40 [1616]: (MI): Max bytes in a batch : -2147483648 bytes
11-08-2007 08:28:40 [1616]: (MI): Quickest batch request : 1566804069 ms
11-08-2007 08:28:40 [1616]: (MI): Slowest batch request : -1566804069 ms
11-08-2007 08:28:40 [1616]: Worker thread exiting