I've installed wordpress mu 2.6.2 localhost followed the guide to the letter.And yes I can create blogs using the wordpress classic theme.
But when I install the BBp trunk zip and install BBP theme under /wp-content/themes/ and active it.
The theme looks ok,however when I select any icon ie profile or blog I get this msg: Oops! Error 404 - Not Found
Why?
You may have missed this is the guide that you followed to the letter:
Support Forum and Bug Reports
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Please read http://codex.wordpress.org/Debugging_WPMU before asking any questions. Without all the information required there we'll just ask for it anyway or worse, your request will be ignored.
Some links and checking the error logs would be a plus.
Also, for buddypress specific questions, you'll have more luck on the mailing list.
Update I've re-installed it and I've noticed that if click on any icon like profile.
http://dev.wordp.com/ (works fine)
http://dev.wordp.com/profile (don't work)
why?