Verizon #777 Can I still use MMS if deleted from ISP list?

I got charged $35 by Verizon for pay by KB usage because I don't have the data plan on my phone. Supposedly I have unlimited txt/pic/mms so do I have to leave the #777 on my phone to send and receive MMS?

I removed it almost evertime I flashed before but the last time I didn't and I think one of my weather programs used EVDO to update it's self and that is what caused the $35 charge. Normally I just use the cradle or WiFi to update my weather and other apps but I can't seem to send/receive MMS this way.

So do I have to leave #777 under ISP and if so how can I keep all other programs from using EVDO so I don't get charged an arm and a leg

I only pay $40 a month for my phone so my bill effectively doubled by that one time usage. They said it downloaded like 2.3 MB and they charge $15 per MB.

Any help on this is greatly appreciated.