virus problems

vinylmusic

I'm trying to sort out a computer for someone as it was riddled with viruses
Even though it had Norton Internet security 2007 that didn't managed to stop them
Since The subscription was due for renewal I removed Norton at his request and installed AVG 7.5 free. It immediately came up with viruses which were either "healed" or moved to the "virus vault".
I then ran the AVG scan and it picked up a load more. Again, some were healed and others sent to the vault.
I also ran spybot which detected tons of malware and spyware, all of which were dealt with

Now the computer appears to be running fine except that when I connect it up to my router the light for the port I used flickers constantly. This is worrying
Is there a way to see what it is doing?

Also I am wondering wether all or some of the items in the vault can be removed.
I'd be grateful for any advice
They are the following:

Trojan horse BackDoor.Generic9.EFP C:\WINDOWS\system32\drivers\ip6fw.sys ip6fw.sys 28.38 KB
Virus found BackDoor.Ntrootkit C:\WINDOWS\TEMP\122890.exe 122890.exe 25 KB
Virus found BackDoor.Ntrootkit C:\WINDOWS\TEMP\165812.exe 165812.exe 25 KB
Trojan horse Downloader.Zlob.SRE C:\WINDOWS\bgvijmdu.dll bgvijmdu.dll 96 KB
Virus found BackDoor.Ntrootkit C:\WINDOWS\TEMP\388906.exe 388906.exe 25 KB
Virus found BackDoor.Ntrootkit C:\WINDOWS\TEMP\409484.exe 409484.exe 25 KB
Trojan horse Downloader.Zlob.SRE C:\Documents and Settings\All Users\Application Data\lczipepg.dll lczipepg.dll 96 KB
Trojan horse Downloader.Zlob.RD C:\WINDOWS\PeMon\pemon.dll pemon.dll 158 KB
Trojan horse SHeur.ABSM C:\WINDOWS\PerfInfo\kjlHLSpcjn.exe kjlHLSpcjn.exe 3.51 MB
Virus found BackDoor.Ntrootkit C:\WINDOWS\TEMP\122828.exe 122828.exe 25 KB
Virus found BackDoor.Ntrootkit C:\WINDOWS\TEMP\4272656.exe 4272656.exe 25 KB

Donnie

You can remove them all. Also, download, install and Run; Trojan Hunter 5.0

bookduck

grissoft also do a free rootkit removal tool

dos prompt netstat /? - help.
Netstat -b

download Process explorer to see if there are any hidden items running