I am currently playing this game with r1888 and the March plugins at 3x resolution at full speed. Make sure you're using these releases and if you have the ability, vista sp2 or higher I believe, make sure you're using the directx 10 version of GSDX. Speed hacks that I'm using and appear to be stable are 1.5x cycle rate, all three EE misc hacks, Stats flag hack, and the very first tick of VU Cycle Stealing.
how do i find r1888 is that a pcsx version or gdsx, i searched but couldnt find. also, what is the difference between dx10 and dx3d10. i saw some one mention its better for windows 7 users to use the 3d one.