xerox phaser bonjour

I am attempting to share my Phaser 8550DP, which is connected USB to my iMac, on a wireless network with multiple PCs running Win 7 Pro x64. I have installed the Bonjour Printer Wizard on the PC. I have ensured that Sharing on the iMac is on. This is confirmed that as I run the Bonjour Wizard, the PC "sees" the printer. However, the driver is not installed on the PC yet, and it is my understanding that the Bonjour wizard is supposed to be a part of that process.

Unfortunately, the 8550 is NOT listed under the list of available Xerox drivers. There IS an option to select a disk that contains the driver, but the setup.exe for web-based install is not allowed. The wizard is apparently looking for an .inf file.

Can anyone help me with DLing the proper driver to allow completion of the installation process?

Thanks.

David R. Boag, DDS