when you view the mms attachment hit menu then make sure you check the box next to file name then click save a small box appears stating image saved to sd card and then go into your gallery and it will be in a folder called downloads.
Now if you looking using a file explorer go to your internal sd or external wherever you have it set to and click on the folder called download.
Awesome......it worked for me. I now understand what I was doing wrong. I wasn't hitting the check box first. Thank you so much for your help. I'm glad I found this forum. And I absolutely LOVE LOVE LOVE my new Infuse!!! It is awesome!!
I honestly hadn't even tried until i read your post and when i tried i saw the check box and just tried to tap it thinking why should i have to but sure enough you do but thats weird that you do.