Actually if she is not comfortable using a computer, I don't know if it's a good idea to give her a digital camera....even with the sony cd cameras, you still need to know how to move files around, etc. Maybe just a nice film camera would be better for her. Plus those Sony mini cd camera are HUGE! and weigh a ton.
or maybe see if your local walmart accepts compactflash cards...then she can fill up a 256mb card, go to a walmart, and have them print all the pictures out for her ($0.26 a print, not too bad).