Problem with boot sector?

[Ettiave]

Ok, here is the story. I repartitioned my storage drive to add a small partition for Windows Vista Beta. I installed the beta on the storage drive and everything. My main windows is on a RAID which Vista didn't recognize, but I thought no big deal. Well it in fact somehow made it so I can't boot to Windows XP. Ok, that's all fine and good. I booted to Vista and installed the RAID drivers for my motherboard(nForce 3 250 raid). When I rebooted the computer got to the part where it loads the OS and just sat there with a blinking cursor. I tried a few things but nothing worked. So I restarted and stuck my WinXP cd in. Formatted the storage drive and it copied files and everything. Now when my computer restarts it SHOULD be booting into the windows installation from the HD. Instead it gets to the part where it should boot from the HD, then my system resets. I tried removing the storage drive to force it to boot from my RAID but it gets to the OS and sits with a blinking cursor like above. I am at a lose as to what I can do to restore this. I cannot afford to lose the stuff on the RAID. Does anyone have any suggestions?

 

[xtknight]

Stick in one of the Windows CDs, go to recovery console and type:
fixmbr
fixboot

Then restart.

 

[Ettiave]

My question is will that work on my raid array without drivers? My floppy is broken so I can't load them atm.

 

[Ettiave]

Ok I got the floppy working and used the raid drivers. It wrote a new boot sector and boot record to the raid. It went to boot into windows and I got all these wierd errors. It restarted and now it's doing a checkdisk. It seems to me that it is replacing the security ID of every file on the hard drive. It also fixed several thousand errors(at least it seems like it). Does this mean that perhaps the windows vista install wrote data to one of the disks in my raid and not the other? It saw them as separate hard drives, one of which it saw as formatted in NTFS. But I didn't manually write any data to them. Does windows write data to hard drives behind the scenes even if it isn't the boot drive?