Increase VRAM on Intel GMA x3150 in XP?

I have an HP Mini 210 with the Intel GMA x3150. It came with Windows 7 Stater, and I did a fresh install of XP. It has 1gb of DDR2 800mhz RAM, which I will be upgrading it to 2gigs in a couple days. I was wondering if there is anyway to increase the VRAM for the "gpu" as i use this to play world of warcraft when i go to friends houses because my desktop is a pain in the a** to carry around, lol. and i dont get that good of fps, and sense GMA Booster doesn't support the 3100 series yet, my only option is to increase the vram.