Brave testers check out the unlocker thread. I posted version 2.31 unlocker. It will allow a flash of the alltel EXE without bricking a non alltel vogue. It protects against SPL overwrites unlike my previous 0.40 unlocker, but it is only compatible with 3.xx roms (the alltel EXE at this point).
I'd have a better write up for you if i had my phone, but at this point i'd only recommend this for experienced users, and hopefully one that would like to do a write up
Here's the thread for those that don't like browsing to the sticky:
http://forum.ppcgeeks.com/showthread.php?t=20370
Enjoy!