Hey mate,
To make things simple for you, do the following:
What u need: another working pc
1 Remove the hard disk from your *broken pc*
2 Connect it to your *working pc* as a slave drive -> example connect it to the pc your using to connect to the web right now
3 Boot up on the 2nd pc and you will have access to the data on your *broken pc*
4 copy the data and files to CD, USB key ,etc and once done - you can format that hard disk
Hope this helps as its much quicker for a beginner
Morci 8-)