This is the closest i could find to your computer. it gives you an idea of what works...
IBM ThinkPad R40 Model 2681-CU1
Pentium 4-M 1.8GHZ, 1GB RAM, 20GB HD
Audio working great, Keyboard gave message that was not found at first boot, but it actually works, ATI Radeon Mobilty (7000 ?) 16MB ID'd as 128MB, no CORE but every efect works.. Intel 2100 802.11b not working, but 10/100 works fine, haven't tested the modem yet.
mouse does not work