How about the "TWAIN Driver and EPSON Scan Utility v3.04A" package from
this page on the Epson web site. These are identified as Vista drivers, but I downloaded the equivalent v3.04A packages for my Epson Perfection 2400 scanner and they work perfectly under my installation of Windows 7 RC 64 bit. The user interface for the Scan Utility is a little different than the version I got with the scanner 6 years ago, but it does all the stuff the original version did plus some more.