all of this could have been found in a simple search, the relocker is almost always found in the same thread as the unlocker, and the stock rom can be found in the CDMA Upgrades 'Stock Rom' Thread.... not hard to find... open your eyes...
For the Stupid ppl, Ill put it all in one post though
Rom
ftp://up.ppcgeeks.com/Touch%20Pro%20...60652_Ship.exe
Re-Locker
http://hpcmonex.net/htc/rhodw/Rhodiu...locker_063.zip
and yes the stock rom will reflash the stock radio as well on the off chance you had your sim unlocked, and if so, the sim re-locker can be found here.
Sim Re-Locker
http://hpcmonex.net/htc/secrelock.zip
To relock your sim extract the zip on your pc, and put the exe on your phone, then run it from your phone, then delete the exe.
Always Hard Reset if your shipping your phone back for insurance.