well I'm not able to figure out the details needed to compile your groupcoin or bitcoin-qt, I just get warnings and nothing seems to build. I think I have all the needed libs installed on Ubuntu 10.04.
The experts on bitcoin-qt, and Qt in general, are at:
http://forum.bitcoin.org/index.php?topic=15276.0I can compile bitcoin-qt and groupcoin, but I do not have their knowledge and can not help anyone else with compiling qt.