./install.sh fails with the core. I'm not sure where the log is kept, so I just started to install the packages by hand. I can get them all to go except for core and mta:

rpm -ivh --replacepkgs zimbra-core-3.0.1_GA_160.RHEL4-20060216172310.i386.rpm
Preparing... ########################################### [100%]
1:zimbra-core ########################################### [100%]
Could not create the Java virtual machine.
mkdir: cannot create directory `/opt/zimbra/ssl': File exists
mkdir: cannot create directory `/opt/zimbra/.ssh': File exists
Error occurred during initialization of VM
Could not reserve enough space for object heap
Could not create the Java virtual machine.
error: %post(zimbra-core-3.0.1_GA_160.RHEL4-20060216172310.i386) scriptlet failed, exit status 1

rpm -ivh --replacepkgs zimbra-mta-3.0.1_GA_160.RHEL4-20060216172310.i386.rpm
Preparing... ########################################### [100%]
1:zimbra-mta ########################################### [100%]
umount2: Invalid argument
umount: /opt/zimbra/amavisd/tmp: not mounted
mv: cannot stat `/opt/zimbra/amavisd': No such file or directory

the script didn't detect any missing componets or any issues before install. Please help

Miles