OVER ZEALOUS(NT SERVER 4.0)

IN HOME PROJECT I TRIED TO INSTALL IIS 2.0.MY
NT SERVER HAS SERVICE PACK 3.0.w/ie 5.0.DURING INSTALL IT WOULD NOT INSTALL WWW
SERVICE.DECIDED TO UNINSTALL TILL LATER BUT IT CONTINUOUSLY HUNG.THING WERE OK UNTIL I DID THE FORBIDEN I THINK. I REINSTALLED WITH SETUP DISKS & REPAIR MODE AND THEREAFTER THE OS UNLOADS THE PHYSICAL RAM & REBOOTS AND REQUESTS A DEBUG.IT KEEPS ON TILL I POWER OFF
I REINSTALLED OS IN A DIFFERENT DIRECTORY NAMED WINNT2.I WAS ABLE TO RETRIEVE MY FILES
BUT ALL ACCOUNTS,POLICYS WERE WIPED OUT.I DONT HAVE A BDC,’CAUSE THIS IS ONLY FOR LEARNING.ANY THOUGHTS ON HOW I SHOULD HAVE ATTACKED THIS LITTLE PROBLEM WOULD HELP TREMENDOUSLY—THANX–AZIZ