I think I just realized why my Design on Boost is using the mms settings from Sprint. Because it is a Sprint Design that I flashed to Boost myself. I might've rewrote the serial of the phone but the CID is still the same. My bad. It was no fault of your ROM. I thought it checks the network somehow... Obviously I changed the mms settings to what it needs to be on Boost but is there a possibility of including a choice somewhere along the line so that you can choose what mms settings will be used?