Here is my small contribution to the community.
After trying many combination I have finally an ATT curve working with my T-mobile with all themes unlocked and no Push to Talk.
PTT is useless for me as for many. Therefore you can free some memory and have your curve run faster.
Files below were tested with O2, Att/Cingular and Rogers latest OS.
Download, unzip and place both files in :
C:\Program Files\Common Files\Research In Motion\Shared\Loader Files
File blackberry.alx will unlock all themes
File platform.alx will remove PTT
Once you have installed both files you need to remove vendor.xml from your pc:
C:\Program Files\Common Files\Research In Motion\AppLoader\vendor.xml
Then connect your curve to the PC and launch Desktop Manager.
If no message is shown during synchronization then launch Application Loader and simply press next a couple of times.
Your device will reboot automatically. Unplug after reboot and enjoy your new themes.
Best,
Florian SEROUSSI
Download files
here
PS: if I forgot something let me know I will edit my post.
***PLEASE NOTE***
This method works for some, others it DOES NOT. If you decide to use this method, and it doesn't work, here is the fix (if you receive app 200 error after installing OS)
1) uninstall the OS that you just installed, from your PC - in add/remove programs.
2) reboot PC and reinstall the OS again - to your PC
3) edit the blackberry.alx file using this thread/how to
http://blackberryforums.pinstack.com...or_themes.html
to delete the ptt feature, simply follow THIS path exactly (AFTER you install the OS back on your PC) and delete the file.
C:\Program Files\Common Files\Research In Motion\Shared\Loader Files\
8300-v4.2.2.114_P2.4.0.53\Java
the digits in red may be different, but as long as its the 8300 OS you will be fine.