OK so I developed a lot of mobile software but have just broken into computers. I installed debian 6 and I put grub in the wrong spot (hd0,2) to be exact. When I boot up to my debian 6 amd64 I get stuck at the debain disclaimer with the username-pc: command line after signing in, and when I reboot and hit windows7 loader it reboots back to the grub loader. I don't have a DVD for my windows and can't get into the debian graphic desktop environment. Please any help would be greatly appreciated.
You can try Boot-repair. Boot-Repair, simple tool to recover access to your Operating Systems. To get Boot-repair you can download it from here
Once you download the ISO file, go ahead and burn it to a CD, then make sure that your system is set to boot from CD. Boot from the newly created Boot-repair CD, and follow the on-screen instructions.