Hi chrisa and welcome to Dev Shed.
As you may have noticed, I have split your post off into it's own thread as it's always better to start a new thread.
Anyway, it sounds like a drivers issue to me. Did you re-install the sound drivers once you re-installed XP on the new hard drive ?
The No Ma'am commandments:
1.) It is O.K. to call hooters 'knockers' and sometimes snack trays
2.) It is wrong to be French
3.) It is O.K. to put all bad people in a giant meat grinder
4.) Lawyers, see rule 3
5.) It is O.K. to drive a gas guzzler if it helps you get babes
6.) Everyone should car pool but me
7.) Bring back the word 'stewardesses'
8.) Synchronized swimming is not a sport
9.) Mud wrestling is a sport