How to install HP Color LaserJet 2605dn driver under 64bit Windows 7

This week my boss bought a new PC for me with the Intel Core i3 processor and 4G memory, and it is the first time I have chance to use 64bit Windows 7. Windows 7 recognizes most hardware drivers, so I have no trouble to install driver until today.
Today when I wanted to print the Western Union Quick Cash from Google Adsense, I found I have not installed the printer driver, HP Color LaserJet 2605dn PCL6(installed on Windows 2003 32 bit server), I do the same steps as Windows XP, but failed, no driver to use. After a quick search, I got HP Universal Print Driver for Windows PCL6 x64. I can successfully installed it as local printer driver, but still failed to install it from network.
Continued to search, and have no answer, then I though how about for Vista 64-bit? then I got HP Color LaserJet 2605 PCL6 Plug and Play package, and it really works.