You guys are being too hard on Lordice.
First, his LaserWriter 2 is a LASER printer, not a piece-of-garbage inkjet that will bankrupt him on ink cartridges. A laser printer will cost more than $150 (altho he can probably find a used one that gimp-print will support). Cost-per-page on inkjet printers is like 10x as high as lasers. Inkjets are only cheap to buy - they're very expensive to use.
Second, somewhere along the line Apple made the decision not to support PostScript level 1 printers on Mac OS X. They worked in 10.1.5 - I know, I have a LaserWriter 1 - but they don't work in 10.2. I suppose there's some justification for that decision (printer age would be a very stupid one), I don't know what it is, but it's there and that's that.
Apple's laser printers were very well made (overengineered as usual) and many are still in use today. My LaserWriter 1 still works fine. I'm going to use it with a PC.
So, Lordice, if you can go back to 10.1.5, your printer will work; in 10.2 it won't. I hope you can find an economical solution.