Sorry I didn't see this earlier!
If you have the internal wireless antenna, there be 2 clear spots on the sides of the LCD cover, the T20 cover won't fit. Take off the miniPCI cover, on the bottom, and look for a black and white wire, plugged into the wireless NIC card, or not. If you have those wires, the LCD case is just a tiny bit bigger, just enough that the LCD bezel won't fit.
If you don't have wireless, or don't care about using it, the T20 cover will fit.
If you want some help changing stuff out, PM me. I've rebuilt quite a few T2* lappies.
steve