Most touchpad drivers will work on windows 7 but the program which control the functionality of the touchpad "Synaptics" or ALPS" pointing device may not be compatible in win7 this is an issue with most computer manufacturers but not their fault since win7 is a new operating system and possibly in the near future who knows when windows will come with a windows update to make touchpads work in windows having all it's functionality available.

try calling your computers maker and ask if they have work arounds for your touchpad some may have options to make all your touchpads functionality work but some may not try calling them and have them check it for you, they should know better since they are trained for the specifics of your system.^_^

I believe you will need to install all the drivers for your laptop, I have a Emachine D730, at first I was having trouble with the multi gesture function, then I read the manual, it still need to have the drivers installed, I installed all the drivers, for my unit the name of the driver was synaptics