CNET's Traffic Disconnect?

Within a generally bullish article, Bambi Francisco writes:

According to comScore's latest figures, traffic to CNet properties, which include News.com, Download.com, CNet Search.com, and CNet.com, declined 5% in June. The traffic to ZDNet.com fell 17% while traffic to Mysimon fell 7%... It was CNet's newly-acquired Webshots traffic -- which nearly doubled -- that helped CNet's overall network traffic.

Question: How are these traffic numbers reconcilable with CEO Shelby Bonnie's claim that users and usage was up at least 20% in Q2 excluding acquisitions in the last 12 months (ie. Webshots)?

Full disclosure: At the time of writing I'm short CNET.