laptop hard drive problem (any way to do a system restore?)

Hi, last week I powered my laptop on (hp dv9000, running xp) and I forgot to plug the power supply in so as the laptop was booting into windows, the battery died and the computer powered off.

I plugged the laptop in to the power jack and pressed the power button and I got an error saying to run the windows recovery console because it detected a missing file. I installed the cd and ran the recovery repair wizard and it successfully fixed the problem. Windows booted normally and all my files were intact.

The only problem I had was sometimes when I power the laptop up the bios settings show and right when the windows icon is supposed to load the computers screen stays black and windows does not boot. If it does that I just hold the power button and shut it off and put it back on, usually the second time it successfully boots.

But ever since the power outage about 50% of the time when I power it up I have to shut it off and put it back on in order for it to load. So today I removed the hard drive and ran sea tools for diagnostics, seatools found no problems. I rebooted the computer with the laptop drive still attached and windows 7 said it detects problems on drive D (the laptop drive) and it was doing some sort of a "repair" which took about an hour.

After the repairs were finished I went into the properties and I noticed that the drive now showed over 350 gigs of free space. This had me concerned because I was supposed to have only about 20 gigs free. So some how during the "repair" it marked a lot of my good files as free space.

I then reinstalled the drive back into the laptop and I booted it up and got an error: "windows could not start because the following file is missing or corrupt. <windows root> \system32\ntoskrnl.exe please re install a copy of the above file.

At that point I really panicked and I removed the drive and ran a recovery utility to scan the drive and see if it can recover the data. The program I used was "getdataback for ntfs" . That program took about 10 hours to scan the drive but luckally it was able to recover all my data so I backed the entire directory up (about 460 gigs of data).

So with my data now backed up I was going to see if I can do a restore so I tried to boot to command prompt in safe mode but I got the same error about the missing file. So is there any easy way for me to do a system restore? I have a new drive I am going to eventually re install the OS onto but I have some files and programs I need to use tonight if possible, so if I could get it running it would be great even if it runs unstable until I install a new drive.

So my goal is to undo the changes that the "repair wizard" did today when it lost over half of the files on my drive.  Like I said already I have the files backed up on a spare drive now but I want to recover the original hard drive so I can run a few programs I need for work.