Sprint PPC 6700 flashed to work with cricket, help!

[ct2355]

Ok since i cant find the answer to my qusetion on any post or forums on here, ill just ask and maybe someone can please respond. OK, I have a sprint PPC 6700 flashed to work with cricket. I can send text and use the web but i am having problem with the mms. I cant send or recive mms for some reason. and yes i have wm6 and all that goods stuff. Anyone out there know how to fix this? Also do i have to create a new pop mail on my phone to send pics or can i send it by putting in the MDN@mms.mycricket.com? im very confused and to be honest im about ready to smash my phone. And last but not least, for some reason i cant get my contacts screen to come up, it just goes but to the home screen..... any ideals?..........................thanks for any help you can give a big dummy like me~