OK, another question. What version of Android are you using on your PE?
If you have installed the PE Allmine then that is your problem because allmine sets the PE as a phone to allow connecting to the market.
Since what you are trying to install looks for something to tell it if it is installing on a phone or tablet if it finds the allmine version it will assume it is a phone and when it tries to activate the mobile network it will fail.
One other thing, what is the version of Android that this app requires? Ermine, in all its forms, is a modified version of 2.2.