My OS is not launching

First of all this is'nt the one I posted about before. I tried posting at this forum full of idiots(The ubuntu forums) and they keep saying to burn supergrub and all that stuff. So I did then I said it did'nt work and then I got no reply. So anyway. This is what happends, I boot my computer and it looks like its okay. The windows XP loading sighn comes up....Then I get the
'blue-screen-of-death' 4 seconds in the load. I need a disk that will repair the XP. but I don't have my old XP disc. Any suggestions.

Re-install?

I don't have the XP install disk.