What happens when syncing or importing an Outlook folder (error message, nothing, etc.)? We get Error synchronizing item: Extended MAPI unavailable.
Does the MFCMAPI executable work (download, run, and choose
Session | Logon and Display Store Table on the menu)?
http://mfcmapi.codeplex.com/Release/...6#ReleaseFiles
MFCMAPI is a Microsoft utility that does something similar to UR for accessing Outlook. In our tests, it works with Office 2007 and earlier, but not with Outlook 2010 Beta on Win XP SP3 (I get MAPIInitialize failed with error 0x80004005 == MAPI_E_CALL_FAILED, which is consistent with the UR error). I wouldn't expect UR to work with Outlook if MFCMAPI doesn't work (and their web site does mention Outlook 2010, so I'm not sure what the problem is -- hopefully a glitch in the Outlook 2010 beta that will be fixed before final release).
We did make one small change to how UR tries to locate Outlook/MAPI (build 4.1.2.5), but it didn't help in our tests.