I would like to replace outlook in our work environment. Here is what we are running.

ZCS 4.5 NE (plan to upgrade to 5 in a few weeks)

I would like to use ZD because a few users are close to reaching their quota and they need to keep all of their emails.

Also I would like to switch over users who are currently using outlook to use Zimbra Desktop. What would be the best way to accomplish this?

Also I just installed ZD and my themes are blank in the ZD preference screen. Any reason why? I would like to match our Zimbra Web Client.

Thank you,