My hard drive was wiped after a virus infection.  The system has been re-installed, but I no longer have any audio.  I am presuming the problem is that I don't have the audio driver installed, but I have not been able to identify drivers that are clearly appropriate on the Dell website.  I'm hoping someone on the forum can help me out.

My PC is a Dell Dimension E510 running Windows XP.  When purchased the specified sound system was "Integrated Sound Blaster Audigy Advanced HD Audio".  When I scan my current configuration it says my sound hardware is a "Unimodem half-duplex audio device".  When I go to  the "Sounds" tab under "Sounds and Audio Devices" in the Control Panel it says I have no audio device. 

On the list of audio drivers available on the Dell Website I see downloads for a Creative Labs Application "Integrated Audigy Invitation" and a Sigmatel driver "STAC 92XX-C Major HD Audio".  Are these the appropriate downloads I should install?  I've checked Create Labs' website and done some googling

but have not found anything that has given me any clear guidance. 

Thanks,