Another great example would be the Necromanthus website. Remus ( the admin) has a running forum and also a chat system both built with Koolmoves that would show you how well Koolmoves integrates with server side code.

Forums are extremely complicated and his running example is a testament to the power of Koolmoves. Remus also carries source code for the Koolmoves platform so it's worth a visit for sure.