Don't worry Rich mine says DX10 on that section too...
Ignore where it say's the CPU's at 3.3Ghz, Windows doesn't see the overclock for some reason. It'd be interesting to see what the actual numbers are as the 7 benchmark stops at 7.9
The memory limitations on 32bit Windows are 3.25Gb TOTAL addressable system memory (which includes stuff like your graphics card). So if you had a graphics card with 1Gb of VRAM that would be taken off the 3.25Gb total too, giving you a maximum RAM amount around 2.3Gb. Applications running on a 32bit OS can't see use more than 2Gb of RAM at once either, so no single program will use more than 2Gb.