1)press and hold on the msg saying you have an MMS and it'll pull it up into the OEM messenger,
2)tap "download" then play.
if you're using just using "messaging", just skip the 1st step and go straight to pressing DL.
now w/the cupcake, of course the the regular messenger now offers the soft keypad, I however still prefer Chomp, which now DL's the MMS w/no prob.
Hell, since the cupcake, my days have gotten a little brighter, Gummi Bears rain from the sky and the Angels themselves have shined a light down upon me with a song of beautiful software advances such as a camcorder, improvements to my widgets and live folders just to name a few. Now if only I had a Taco that would walk around crapping out ice cream, my life would be complete... well that, and a super model wife.