I had success following the steps. I didn't use the iFixit kit, so no new thermal pads and I used Best Buy Dynex thermal paste. I has two issues. 1) as predicted by the guide I did remove the battery plug from the motherboard. 2) Only the color XMB icons were "folded" at the lower right hand corner. My fix was to do a complete format which took over 3 hours for a 60GB drive. Rebuilding the database/file system would not do a long lasting fix.
This was a great and relatively easy to understand guide.