I am running FC3 with kernel 2.6.10-1.241_FC3 and sane-backends 1.0.15-1.4. I downloaded iscan-1.14.0-3.i386.rpm from http://www.avasys.jp/english/linux_e/dl_scan.html, and installed it with the rpm command.
I had no trouble doing scans with the Epson Perfection 3170 running iscan in root or user mode, but when I tried to run xsane, it could not find the scanner. Neither could scanimage, but sane-find-scanner found it. Where can I find the information needed to configure SANE so that I can use XSANE to run the Epson Perfection 3170 scanner?