Thanx micha_b!!! yr my God!
before your last post, i googled and found 3522 beta bios for 8rda+.
And now i'm happy
i didnot need to "reserve" any certain irqs, and just installed nvidia driver using 4363 installer, and modified XFree86Config(just remove "dri" support and replaced "nv" driver with "nvidia" driver.).
Now i can play tux racer and bzflag
Aran, you can find and download 3522 bios file named "8RDA3522.bin" from the url that micha_b tells us.
Never give up