canon i860 driver no longer shows in airport express

I've been printing to a canon i860 via airport express without incident for a year now. I only do it when I travel on business, so it’s like twice a quarter. I’m out on a trip now and got everything setup only to find that in printer setup utility it was no longer listed as an available option. No biggie, I'll just re-add it. Bonjour sees it, I select it, but when it prompts me to “print using”, I select Canon but the i860 is not listed in the drop down list. It stops at S800 - Gimp- Print v5.0.0 beta 2. In fact, everything has the gimp print suffix after the printer name, whatever the heck that is. It used to list the I series printers so I could just select the i860, but no more. I select the s800 and it prints greyed out. I select the s400 and it prints black but on a third of the page.

Help!