Re: Needing Help converting fron RC-1 to BuddyPress Plugin on existant site
Okay, your BuddyPress site is so far out of date that you have a lot of work ahead of you. Since you installed the pre-release version of BP, there have been five major upgrades.
Unfortunately, you upgraded WPMU before upgrading BP. It would have been better for you to get BP up to date before upgrading WPMU, but that is now water under the bridge.
To help you down this road, please read this specific post and all the links it contains:
As far as using your custom theme, you will have to look at the default theme files in BuddyPress 1.0.3 and see what needs to be changed. The theme files have gone through many revisions since RC-1 was released five (or more)months ago.
And, just to be proactive, a very-major rewrite of BuddyPress will be coming out in the next several weeks. BuddyPress version 1.1 uses an entirely different theme architecture. You can read about that here.