Thanks for your reply.
I have installed WordPress 2.8. and bbpress 0.9.0.5. I have used the same database named “wordpress” for both. Please check http://bits-oasis.org/blog and http://bits-oasis.org/forum
I am also facing the problem related to login. I have installed both wordpress blog and bbpress forums. But on integrating them, i am facing a problem of login into my account while using firefox. Although it is working properly in other browsers. Please check http://bits-oasis.org/blog and http://bits-oasis.org/forum