Try searching for SNAP_7300LE.zip.
FWIW, I spent some time on it. Adding my "Vendor 1002h Advanced Micro Devices, Inc. [AMD/ATI] Device 9610h RS780 [Radeon HD 3200]", as described, but I see no change. That probably means that I did it wrong, I tried the wrong combination, or it isn't going to work.
I will try again, someday.