It's not that simple as we have hundreds of ads and different ones, and hundreds of CNET pages. The "SpeedyPC" will be difficult to track down.
Without much details, it is difficult to investigate.
Was this a banner ad (wide ad with graphics)? Or was it a text link?
Was it on CNET Download.com? Or somewhere else on our site?
To give you an idea take a look at this search results page when I entered Speedy PC:
Would it be any of these ads--please look at the text links with anyone of them referring to:
"Speed Your PC"
was it one of those?
Please any help would be appreciated.