Pavilion n5430 hard drive

My hard drive began to die on my Pavilion n5430, so I went to a local
computer store and bought a new 20gig drive. However, in the process
of dying, my hard drive became corrupted; scan disk turned up around
170something bad sectors. One of the things that went bad was the
drivers for a cd rom, as was evident when I tried to back up info to
and external cd drive. I ghosted my dying drive to a good, clean
drive on my desktop to save all my info. Both the laptop and desktop
run Windows XP Pro. My question is this: How can I get windows to
fix itself (ie fix the drivers and other things that became corrupted)
without knowing exactly what is wrong? I was hoping to fix the
corrupted windows and then ghost it back to the new drive, install in
the laptop, and go on my merry way. Oh, and to make matters worse,
the cd drive on the laptop is also dead. Thanks for any suggestions.
-Ben