Epson TX100 new drivers with full support for Windows 7.

You can either download the driver using Windows Update on Windows 7 or get it via:
http://www.epson.com.ph/epson/drivers/driver_download.htm?dc=1&mode=3&m=false&catid=4&pid=1373

Epson Stylus TX100 Driver for Windows XP, Windows 2000, Windows Vista, Windows 7
Version : 6.62
Date Posted : 2009-10-22
Download Url : SX100_TX100_101_106_109_W2K_662Es.exe

Epson Stylus TX100 Driver for Windows x64, Windows Vista x64, Windows 7 x64
Version : 6.62
Date Posted : 2009-10-22
Download Url : SX100_TX100_101_106_109_x64_662Es.exe

Epson Stylus TX100 Epson Scan for Windows
Version : 3.4.9.0
Date Posted : 2009-10-22
Comments : Support Windows 7, Windows 7 x64
Download Url : SX100_EXP_WIN_3490_31.exe

The Mac fiels are there too, but I do not really care.

Epson Printer SSC Utility

It you have an epson printer, then you need to have SSC Utility. Its a russian utility which gives you more control of your printer. You can see the exact usage of each of the ink (which is deliberately hidden by Epson) and also even control the cleaning by black only or color only.

Grab it at :
http://www.ssclg.com/epsone.shtml

Although it did not say that Vista is supported, but I am using it happily.