Do I need to elaborate more??
Go try it!
What you need to do is the following:
A) Download this:
B) Make a REWRITE ALL with CD number 2 (REWRITE CHARACTER probably also works and takes less time but is not confirmed) . When it's done it should start SF3-2nd Impact with corrupted graphics.
C) Remove the SIMM number 5 and put the one in SIMM6 in its place (both should be 128mb size).
D) REWRITE ALL with CD number 1. When it's done it should show SF3-3rd STRIKE with corrupted graphics.
E) Turn the CPS3 off, place on SIMM6 the SIMM that you removed after 1st update
Please comment how it works for you but I believe it's final.
I'm not sure if rewritting with any other game will also erase the content of SIMM6, but to avoid wasting time, remove SIMM6 during any update and put it only if you want to play SF3.3rd Strike.