Whoa, okay that's pretty bad but possibly not repairable. Debug mode should be an option in the F8 menu. Also, try turning off the automatic reboot on blue screens. That should be an option in the F8 menu as well.
For the command prompt you don't need a legit copy of Windows. Just see if you can download a copy and burn it to a cd or make a bootable usb stick. Once you boot from it you can choose the repair option and the command prompt option should be there to (I forgot how the menu looks since it has been a few months already but I could look it up). You can run the repair thing from the command prompt (the non-command prompt auto-repair will probably bitch at you about the installed Windows not being the same as the cd version but that's something stupid that will always happen because Microsoft logic).
Let me know if you need more help ^^