Ok well I'm building a rom right now to see if it is...
In the mean time to figure it out, I sugjest going through the RyanMogul's EPST settings. Its what I use all the time, I used it on my Mogul, Touch Pro, and Diamond and it never fails me.
RyanMogul's EPST Settings:
http://www.howardforums.com/showthread.php?t=1507276
On top of that you might need a PRL File. I have the basic 1050 and my Albuquerque, NM PRL. But you can find your PRL anywhere.
I use these two cabs everytime I install a rom, just to make sure my Arcsoft MMS and WAP Settings are right. I never have any issues with this.
I mainly stick to Caulkins Kitchen just because its more up to date and has Cricket settings installed in it. However I don't ever worry about the cricket carrier settings he has because I just like to be safe and use the two cabs I've attached.
Honestly don't call Cricket. Go into the store. Assure them that it is a fully flashed phone. They always try to pull that shit "this is not a cricket phone so therefore most of cricket services wont work on it".... Its just BS because they are idiots.
I'm workin on the rom and when I'm finished and tested to make sure it works, I'll find a way to upload it and you can try it.