I was removing trojans and was restarted xp as normal but ,

But windows never came back on, it keep getting stuck at the windows is starting sreen. I tried eveything safemode ,last good. not a thing would work.So I reloaded windows and choose to repair instead of new setup. not recovory console, latter repair. and it started and I did not lose my user accouts but when I logged in on my name there was something wrong. and I found out that when I re started the computer changed the drive letters, I have 2 HDs C:.D: E:H:I: ands everything was on C: and H:. now there is no H: and e is bigger. My problem is that all my programs are on H: and there is no H: now and the computer cant acsess them . what if any thing can I do so I dont have to find all the stuff agian PLEASE HELP
AIRTH1