Hi Hilary!
Why do you want to root your device? Have you considered updating to pablob's golden Allmine and not rooting? I think that will give you access to the Google Market if that is what you want.
Also, have you read the Pocket eDGe User Guide that's in your Library? There are several very helpful videos, that I think still exist, showing the many uses of the PE. I can find them for you if you don't find them by searching this forum.
Even after a year with my beautiful little PE there are
tons of things I don't know about it, and probably never will. It's more than an ereader and more than a tablet -- it's a rather complex, very capable device -- well worth the effort it takes to learn, IMHO!