I need your help badly guys or else my uncle will kill me lolz.

To start with, I showed him how to connect to the web using his new computer. But the mblast.exe virus immediately went to his computer and we had no choice but to format his pc. And you know problem when I formatted it. No sounds! No driver as well arrrggghhh. The weird thing is that I see the Audio Legacy Devices under the Device Manager and it says the hardware is working properly. But the Volume sounds are still grayed out. I tried to open the case of the CPU and all it says under the motherboard is Intel.

I tried to installed the XP using other CD twice and yes it worked but still no sound. Earlier, I tried to reinstall it using the XP Pro Service Pack1 that came along with the comp hoping it contains the drivers for the sound card. But during the first part of the installation process, I received errors that it cannot copy these following files:

PS.SYS
KS.SYS
Parpord.SYS
NDSUIO.sys
processr.sys
crvsoe.sys
nic1394.sys
spi.cab
wzc3.dll
mshz63.drv
ntrkalpa.exe

It's weird because when I installed the XP using other CD it worked, but when I used the one that came along the pc it gave me this error. Now I cannot even turn on the XP, it's giving me error message in DOS window that there were problems during the installation.

Help! Before my uncle will kick me