Installing Windows 7 on 2011 MBP without Boot Camp

I have a mid (late?) 2011 MBP 15" I got in August. I instantly installed a seperate parition with Snow Leopard on it, because I really dislike Lion. I still have the Lion and Recovery partition, just incase. I've done all my Windows needs through VM's, but I just got a device that will only work natively, through dual booting. However, because I already have the Lion/Snow Leopard paritions, Boot Camp is just yelling at me. I have no idea where else to get the support drivers, I figured maybe they're on the Recovery partition and will show up in Windows (it's supposed to be the "install disc"). So I made a small FAT partition in Disk Utility, booted the windows install disc, followed through the prompts, then when it came to select a disk, It said I couldn't select that partition because the disk is of the GPT partition style. I tried to click format, didn't seem to do anything.. Why is it giving me this error? Doesn't Windows 7 support GPT and EFI now? And where can I find the support drivers since Boot Camp won't let me download them?