From reading your POST--I'd say you need a Pentium 4 Processor and 1-GB of 400-MHz RAM/ === Also..XP SP-1 was a lousey OS.. XP..SP-2 is much better.. I just re-installed my XP Home Ed.(SP-2)SP3/ ..its running very well..on Pentium M and 1-GB of 333-MHz RAM../
well if you got you hard drive replaced that that might be why because when they replace it they can make it so it only works on somethings not everything and then sense it was replaced and its a new one it doesn't know any other of the files that you had on the other hard drive.. so i would recommend selling your computer and getting a windows computer.