Using a touchpad for custom things

[nitro2k01]

I'm looking for a way to use the XY pad on my laptop for custom things. I already have a stick mouse (Like the ones usually present on Thinkpads) I'm a computer musician, and I'd ultimately like to use the touchpad as an X-Y midi pad. If anyone knows how to that specifically, it would be gold. Otherwise, just reading out the values from the API would suffice, the I could write my own application.

I've found Touchpad 2 MIDI, but unfortunately it doesn't work my ALPS touchpad. (They explicitly say that model is not supported.)

The OS is Windows Xp. Any help would be appreciated.