I've followed youtube video for disassembly (http://www.youtube.com/watch?v=lt9XNnjAcBc).
You have to be very careful and use non-metal tools so you don't damage case.
It's not so scary with keypad sensors on bottom (just at the 85% of disassembly be very careful).
I had bad luck and bought faulty display with bad touch (left side of display was always active, numbers are being dialed by self). I just return back and got a new one.
Don't glue anything or take off screen protect until you try if everything is OK.
*See image if you want to know where you need to use glue.