From the version numbers you give, I assume you're talking about Repartee VM not Unity VMO, right?
Unfortunately there's no one moderating the Unity forums out here that supports Repartee. They may get another section out here for Repartee specific questions but for the time being, only Unity and Connection questions are being fielded here.
If it is a Unity install, make sure you have the version numbers right... Unity's VMO has no problems in Outlook 2000 that I know of.
Jeff Lindborg
Unity Product Architect
Active Voice Corp
jlindborg@activevoice.com