IMac :: Printing From Microsoft Publisher?

I have set up the imac with parallels and loaded xp pro and some software, one of which is Publisher from the Office 2003 suite. I have a HP 8550n colour laser printer attached to the imac via the parallel port on a port replicator and this prints fine when printing from the imac side of the story. When I go into parallels and xp pro and Publisher and create a document it simply wont print. There is only one printer attached to the imac at the moment, the document seems to leave the screen (as such) but it never gets to the printer.