HP pavillion desktop S7730 XP Driver

First you need to Install Version SP2,
http://www.microsoft.com/downloads/details.aspx?FamilyID=049C
9DBE-3B8E-4F30-8245-9E368D3CDB5A&displaylang=en

Notice: YOU must change the Sata Mode to IDE mode in BIOS to make the system recognize your HDD.

Sound Driver:
ftp://152.104.238.19/pc/audio/WDM_R214.exe
(This driver already came along with UAA)

Ethernet Driver: There are two types you can try that suits you spec either Realtek or Intel:

Realtek RTL8100/RTL8101/RTL8111/RTL8168 Driver 6.68.0412.2007 WHQL
Download
or
Download

For intel driver use intel pro (10/100) onboard chipset.

Wireless Driver:
tp://ftp.hp.com/pub/softlib/software8/COL19027/pv-49313-1/sp34976.exe

Download all of the Original Driver here:
http://h10025.www1.hp.com/ewfrf/wc/softwareList?os=228&lc=en&dlc=en&cc=us&lang=en&product=3295729