So thanks to @irtehun, we have a working APK file for our Android phones that are not running on At&t. It seems as though to download programs to your phone you may have to at least have the U-300 and possibly internet through At&t as well. Also when you go to log in make sure you use your "att.net" account that you received when you first signed up for Uverse.
Also @irtehun has posted an update page which he will keep updated with the latest version of the Uverse app for us here. Thanks again!