Bug has been replied upon already.
Obviously getting the graphical userinterface of the HP printer stuff fully working is still in test phase and thus not in the stable official repo, however it is downloadable in the testrepo, give it a try...
--- Comment #2 from Ozan Çağlayan <firstname.lastname@example.org
> 2008-09-19 13:32:21 ---
It's separated from hplip and called hplip-gui "but" it's not entered in stable
repository yet.You can install it from test repository if you want or wait until it enters
into the stable repository.
I'm closing this bug as invalid.