your lucky, I was trying the same thing last night with a samsung printer hooked to a winxp box and followed the OSX instructions to the letter, I could not even see the machine at all from my panther machine.
they have ALOT of work to do to make this functional
I was doing some research last night on getting this to work, I read somewhere that windows does not share the USB port printers so well, so maybe try it via the printer port..(which I tried and no change for me)