I have a note book here running XP pro. It wont boot up and as you know you that darn blue screen with the error. I'm at a lose, heres what I have done so far.
Checked ram all ok
In recovery console chkdsk r/ all ok
In recovery console I ran in c:\windows folder c:\system32\config > dir system > It found one file so I copy c:\windows\repair\system the file was replaced.
I take it that you replaced the config\SYSTEM file with repair\SYSTEM. What about SAM, SECURITY [and SOFTWARE, DEFAULT] files?
If you get it working you next have to get the most recent working registry hive from System Restore files [in System Volume Information]. You cannot just do a sys restore because the hive copied from \repair will not know about any restore points set after the \repair hive was originally saved.