hmmm....i didn't have any trouble putting my 9500 on my p5b-deluxe. Are you saying the support bracket isn't tall enough or wide enough to fit?
Its been awhile since i set myn up, but there should be two support brackets. One that goes behind the mobo and one on top that the brace, that holds the 9500 down, will screw into. And then four screws that hold the two brackets together and two screws that hold the brace down. I think thats it.
CPU: e6600 @ 3.2ghz
RAM: 2GB G.Skill HZ PC6400
Mobo: ASUS P5B Deluxe
GPU: Sapphire HD4870
Soundcard: Creative Labs X-Fi XtremeGamer Fatal1ty
HDDs: 250GB WD + 750GB WD + 2x1TB WD
Monitor: Samsung 226BW
PSU: OCZ GameXStream 600W
Case: Cooler Master Stacker
OS: XP Professional SP3
Mouse/keyboard: Logitech MX518/Saitek Eclipse II
Speakers: Logitech Z-2300