ugh, Where do I start (Can't load XP)

OK my problem started a few days ago when i did system restore to resore my computer to an earlier date (to change back drivers).  For some reason that gave me an error and then i couldn't boot Windows (First it gave me missing or corrupt hal.dll, and then it gave me missing or corrupt \windows\system32\config\system)  So then i tried to do a "system restore" using the recovery console (i read about it on a site), but then that didn't work and then i was stuck with windows not loading at all.  Well i needed to use my computer for school, so i re-installed another copy of windows in the C:\WINDOZE folder so i could still use my computer.  Now when i boot i have the option to choose C:\Windows or C:\Windoze to use.  When i try C:\Windows it starts to load and then just goes to a black screen after the xp loading screen.  I can't boot into safe mode with that installation either, it just freezes part way through loading the drivers.  I can't do a repair install because when i try to, the windows xp cd doesn't recognise C:\Windows as a windows installation.  Now, what i'm asking is:

Is there any chance of me getting my C:\Windows installation/programs (registry values) back?

 

Thanks for your time taken reading this and for any help given.