I had some trouble with rom manager for the first time getting over to bugless beast.
It's a good idea to flash rom manger 2-3 times. My backup didn't work from Rom Manager so when I got stuck in a boot loop I had to wipe everything, reload an older froyo build I had, and get back running with that.
THEN I did the three re-flashes, downloaded BB .4 onto the sd card, rebooted into clockwork mod recovery for manual update and was good to go.
One member recommended NOT using OTA updates with rom manager and froyo, to instead download them on the PC, move them to the sdcard and apply it from there in manual mode.
That worked.,
and btw if you remove the stock mms with the scripts, then google voice will not get push sms for you. As soon as you put it back on, google voice will receive push again.