Hi, Thanks to "The Saint" (S. Templar)for letting me know you were here

First of all their host file is not as it should be. Please do the following:
Download: hosts.zip [right-click - Select: Save Target As]
From the "Save As" dialog box, click the Desktop icon on the left side.
Click Save, this will save "hosts.zip" to your Desktop.
From your Desktop right-click (hosts.zip) and select:
Extract All from the menu.
Click Next, click Next, select the option:
"Show Extracted files", click Finish
This will open the newly created hosts folder on your Desktop.

Double-click on the included mvps.bat file, this will rename the existing HOSTS file to HOSTS.MVP, then it will copy the included updated HOSTS file to the correct location on your machine.

While the scans are clean... they have a couple "junk programs" on the machine that should be Uninstalled using Add/Remove:
MarketBrowser
Uniblue RegistryBooster 2009

There are a few auto starting programs that don't need to auto start, they can be run manually quite easily.
Microsoft Works Update Detection
S3tray2.exe
NvCplDaemon
IgfxTray
Malwarebytes' Anti-Malware

Since they are using XP they can easily stop these auto starts using a neat little program called Mike Lin's Startup Control Panel
http://www.mlin.net/StartupCPL.shtml

Just download, install, open the program and remove the check marks from the listings above. Close the program and reboot.

You should reduce the size of System Restore, it has too many. Right Click My Computer, choose Properties. When that opens go to the System Restore Tab, turn off system restore and move the slider there down to no more than 5%. Then restart System Restore.

I would also recommend that you update their Firefox to the latest version which is version 9.0.1. This can be done by going up to Help, About Firefox and checking for updates right there.
That should allow the program to update. Now the new version looks much different than the old one they are used to so you will need to install this Addon so it will look the same:
Firefox 3 Theme for Firefox 4 and higher.
Available Here http://ffaddons.game-point.net/ff3ff4/

They also don't appear to have Java installed at all. This is truly needed
Go here and download and install
http://www.java.com/en/download/index.jsp

I would also recommend a Disk Defrag. Possibly hasn't been done in awhile.

Other than that it looks clean. Other questions?