thanks will check these.

Check out new version of CB it has more feature and supports Joomla 1.5 naively.

Also check new community components are build on joomla like JomSocial, Joomunity etc

Community Builder will work however there are some extra requirements when registered users run profile search. CB Search is very basic, the last I checked.

For this website there are some extra requirements when people run searches mainly to keep search results anonymous until both parties agree to exchange full disclosure.

The old version of Joomla+CB used to have an Advanced Search module which met some of these requirements but it does not work with the latest release...

I think you can use Joomla with Community Builder.

-Nazeer.