If you have have total commander installed, it's pretty simple.
Open TC, and in the address bar at the top, type extended_rom and hit enter.
The address bar is the space next to the "\" ".." ">" characters.

I'm sure there are tons of other ways, but this one is pretty easy.
BTW - If you're on Verizon, why aren't you using a newer ROM? There are amazing ROM's out that are way better than what Verizon offers.
Anyways, good luck.