Re: Fatal Error on activating BuddyPress plug in
James-
At this time, BuddyPress only works with WordPress Multiuser (WPMU) version 2.7.1. You will have to install it yourself, which is really the only way that it should be done. It is never wise to use a one-button install service to install complex software platforms.
Now, whether your hosting plan will be of sufficient horsepower to successfully run WPMU is a different issue. For this issue you can search the WPMU forums.