need help with video card

ok got speed fan. cant really tell which temps are which but i have an idea now of my temps. ty.

how do i know what speed my agp slots are? could u tell me the speed? ty

Use CPU-Z to tell u ur AGP slot speed and ur AGP version. Click the Mainboard tab and the two I just mentioned will be under the Graphic Interface headline. I think SpeedFan also does this but I'm not sure.

could i run a x800 gto with 4x agp slots and 512mb of ram?

Yes, you could. A 8X card like the X800GTO is backwards compatible with th 4X slot.

didn't the latest catalyst driver take care of the 3d rendering problem. I believe it was the 6.6 catalyst released in June. I could be wrong though.

Correction, the box should say AGP 4x/8x. Only then will it work in an AGP 4x slot.

should i buy a new memory set? i believe i want more than 512. maybe 1G? could i just buy 1 stick of 512 to match my stick of 512? its PC2700. or at least thats wat CMOS told me.

Yes u can but just make sure it's the same speed(and brand preferably) as the other stick that is installed.
Also, if the motherboard supports dual-channel RAM, then u will get better performance with a dual-channel kit from a reputed company like OCZ or Corsair. I'm guessing it won't since it's not a custom build but I could be wrong.