Worked like a charm - I literally justentered the IP address in the wizard (it's a network printer) and it found it. Since it's not exactly a mainstream printer and it's a few years old now I was very impressed.
I'm a little more peeved with HP, though. They never released any Vista drivers for my combo-printer, which was only about a year old at the time. Instructions say to use the default Vista drivers, fine. Those work great.
Unfortunately, none of the supporting software work well on Vista. If I want to use the built-in scanner, I have to either pray it will work this time or plug it into the ancient XP laptop.
Not satisfactory at all.