YAY! I am basking in the loves from ya'll!
I shall share the pattern number! Glad to help out curvy billy-girls! It is a discontinued pattern, though not too hard to find: Simplicity 4242. It is hard to find patterns that will work for this technique, but this one is fantastic. It can work for others but I think you will have to add fabric to make enough room to keep the picture in the center. I have done that a few times making these tops, just cuz the pic was centered too high on the T shirt. Like I said though, You can always engineer you fav T shirt design into the front piece of any pattern...just takes some tweeking!
here are the backs: