Setup your Trackpad with iATKOS [L1, L2 Compatible]

For the Trackpad - I suggest you try the Kext from the following link:
http://www.osx86.net/downloads.php?do=file&id=1448
 

Its from the GM of Lion, but for us - it actually worked, where as the 10.7.2 kext did not. Don't bother with the prefspane install if you simply just want the trackpad working.

Replace the two kexts with the one from the zip, then use kext utility to repair permissions (inlcuded in L2. Use finder to goto Utilities/Tools.

Thanks to mrotacon