Root Droid 2, root or replace screen?

[Goochyamama]

I have a Droid 2 that I previously reported as lost/stolen. Found it 1 month later, but was told it cannot be used again,(It is in perfect condition otherwise) My replacement Droids screen is completely cracked and I want to either Root/Unlock the previous phone or just replace the screen.
Would a root allow me to use a phone that Assurian has "locked out"?

 

[nerdmastax]

replace the screen, there is no good easy way of altering the esn.