Francois,
Thank you for the help. Here's where I am now: I've added the epson driver as you suggested, but it is not a "modern" DPP driver, so it doesn't show as an option when connected to the print server. I do now have the direct-connect printer set up and working, i.e. via USB with the correct epson driver. When connected directly it recognizes the printer and uses the epson drivers (I've since updated those from the epson website).
So my only issue now is how to get the new, updated epson drivers to appear in the selection when installing through the printserver via appletalk. I'm presuming these drivers from the website are DPP drivers, but maybe not. If I was more mac literate I would probably know these things. I just emailed epson but have not heard back yet. I tried using CUPS but that gave the same result: No epson driver option for the 2200.
So here's my plan: Once I find out if the new driver is DPP, I'll try to figure out where to place it so it appears as an option. Not sure if that's a good plan, but it is all I can think of.
Dave