Thanks for the response - I also have been stopping by their site, and their forums, to see if there is any news about UBB/Links integration, and there doesn't seem to be anything happening.
It's a shame, because the Links product is so well designed...
Perhaps if a FAQ were written by InfoPop (or a UBBDEVer) on how to interact with the UBB membership registration system, it would be helpful. Then we could try and hook many other interesting scripts to the registration engine of UBB.
Ciao
Rob