CB is really easy to setup! Im sure if you come up with any problems if you decide to install it - i can help ;D
I have not tried the bridge with anything else, other than CB - so i highly recommend trying it!
---Update---
It appears that there is a conflict between your registration forms - when on the home page, it wants me to register in SMF (which shows an error page) whereas on the forum itself, it wants to register me with the Joomla! register component.
May want to try changing some settings