one database different urls

[shridevimoogi]

hi
Below is the scenario:

We have many sites and each site has set of forums. All the forums are in single vB database.

Is there any way, can we show only relevant forums for each site among the forums in the database.(for ex i have domains aaa.com and bbb.com among 10 forums in the database first 5 should be visible in aaa.com and only first 2 in bbb.com)

We have single vB database to share with different sites. we have one vB license for each site. but all these vB application should talk to one database and we should be able to restrict forums and to show relevant forums for each site

pls advise.