i had working the tzones, but like for a while didnt work but now it does...
heres what u have to do, try it...

1.- configure the edge settings: APN wap.voicestream.com User and Password in blank
2.- go to installer is u have the big boss source (n if u dont heres the source sleepers.net/iphonerepo) and install the edgefix 1.1.1 located in Unlock That iPhone, (obviously this is just for 1.1.1 iphones i dont know if it works with other FW) this is to save the edge settings after the reboot.
3.- get out of the installer and automatically the summerboard will restart
4.- get in to the installer again and from the same source and same location, install the T-Mobile TZones Hack
5.- get out of the installer and a messege will show up telling u to restart the iphone, do that, and thats it ur iphone have to work perfect...

after the hack DO NOT CHECK THE EDGE SETTINGS cuz i know that the phone will stop working or will frezzy until u restart the phone...

just 5.99... no man i dont wanna keep stealing T-Mobile... lol