OK. So you won't have any changes to your bill with wifi tether. Google search wifi tether apk and you'll find it. If on 2.2 dl the 2.0.7 ver.
As far as bloatware, dl titanium backup pro (it has to be pro) and for each application you want to freeze, click on it and hit freeze. Don't uninstall any system apps!
I want you to check your pm box. I'm sending you something.
Droid 2 Liberty GB v0.8