If you use their touchscreens, which we have previously found to be (mostly) zytronic, you can download a neat utility from S.L tech part of their website which includes a driver package, and it works on windows 7...
You have to pick the download apart to get the bit you need but it's worth it.
Zytonics drivers for windows 7/Vista/XP etc...
If you mail them to me i'll upload them.