Here is the Link, this is the importand part:
First make sure that the printer works ok on the Mac and make sure that it’s shared as a windows printer.
Now add the printer on the XP PC by add network printer then browse. Once you have seen your printer select it but use the Apple Colour Laserwriter driver, I’m using the 12/600 one. I did see you post on not being able to browse if that is still the case then type the path in (start, run \\Mac\PrintQueueName) and set it up that way. Should work ok.
Darauf muss man ja auch erst mal kommen. Am PC einen Apple-Drucker zu installieren, damit alles brav HP-Drucker am Mac rauskommt. Komisch. Der Grund ist der, dass der Mac Postscript erwartet. Wer kann das schon wissen? CUPS wir mir immer suspekter…