According to HP there are no drivers or software available for Vista or Windows 7 for that printer.
It does say that Windows 7 should have the basic divers for the printer to work.
Go to hp.com and check it out.
I have a HP 932c on my 2 XP machines which is networked to use my HP 932c printer on my XP machine. I now also have 2 windows 7 machines, when i try to locate the printer it says about needing a driver??? Any help