Need to boot Windows 7 from Grub rescue command prompt

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http://unix.stackexchange.com – I booted my computer today and found the Grub rescue command prompt. I have been given this computer and it has Linux and windows 7 on it, but I have only ever used the windows section. I have no idea about Linux at all, and was startled by this "Grub" thing. It won't let me do anything in the command prompt, and i can't boot windows. I have a netbook, so there's no CD drive on the computer. I need a way to get into windows 7 from this command prompt. With a little bit of searching (on my phone) I found a couple things to enter that are supposed to let me into windows. I tried this: 1) rootn (HowTos)