newbie looking for correct unlocker & rom for us cellular

[scoot0073]

ok im new to wm. i got the us cellular htc touch pro cdma w/ wm6.1. i been reading up on this site to learn how to install wm6.5 on my tp.

1. do i need to unlock my cell first ?
if so could some1 lead me to the correct unlocker.

2. Rom's .... is there 1 for my carrier US CELLULAR ?
could some1 lead me to it as im getting confused with all tha
diff. flavors as to tha 1 i need.

i have read tha tutorials above but tha more i read tha more i get confussed.
srry for tha newbie questions.... thanks