HALO Version 1.0 MMS for cricket

I'm trying to get the mms working on my HTC evo 4G flashed to Cricket. . I'm using HALO Version 1.0 for my ROM and with this ROM I am not able to use the APN backup and Restore app as it doesn't not allow 3 party apps to change APN's. Also I can't go into the MMS setting and change those either as there is no option for this in the SMS or MMS setting. I love this ROM and would like to keep using it.

PLEASE HELP!!!!