Stock Rom - I think you have to unlock your phone before you can mess with any of the system files...
See here:
http://forum.ppcgeeks.com/showpost.p...44&postcount=1
But try the attached cab file I made first. Copy to device and run.
**Edit** I forgot the obvious, you have to turn off TF3D before running the cab file. Start => Settings => Today => Items. Turn back on after cab is installed.