http://rapidshare.com/files/16742399...p.exe.zip.html
there's the stock sprint ROM
http://forum.ppcgeeks.com/attachment...5&d=1245203494
there's the sprint relocker
process is the same as unlocking and flashing custom roms...
run the exe that you get from the rom and it'll automatically run the romupdateutility.
as for the relocker, put the RAPHIMG.nbh on your sd card and press the soft reset button while holding volume down and power buttons