See if you can see the image now which I attached instead of pasted. I assumed you could see it since I could.
I understand now why you sought out the tutorial associated with it - which has unnecessary components associated with the Win7 RC which can be confusing so I stopped linking it years ago.
Anyway thanks for reporting back and glad it helped.
We recommend Microsoft Security Essentials
for the most part here, although Kapersky is good if you need to pay.