HELP me scan from my scanner

I am trying to get my old Epson Perfection 1660 scanner to work on a computer at our office. The computer has OS9...I lost the CD that came with it so I downloaded and installed the driver successfully online. However, I can not for the life of me figure out how to get the scanner to print through Photoshop (version 5.5) I don't even care so much that it works through Photoshop, but I just want to be able to use my scanner...can anyone give me some tips to try?