Maybe I just don't get the interface for GoZ...help?

Hi there first time caller…I just installed latest Zbrush and all plugs in Lion, and I am using with PS CS5 and C4D Studio 13, and GoZ works with both, however, I can’t make heads or tails out of the interface when it comes to choosing which to transfer back and forth from…it seems random to me, with both GoZ and Zapplink. I can’t find any doc on actually using the plugs, but I can tell from playing this is very cool and useful. I just wish the preferences for both has something like target=application that could be switched as needed… cheers!
Thank, Cristiano