smallcompany - 5:15 pm on Mar 20, 2008 (gmt 0)

Back end scripts at the proxy service that translate the characters for security reasons?

That SV1 stands for IE6 with enhanced security, whatever that is. Proxy services? Not sure. IP addresses start with 66, 71, 76, and they belong to different ISPs, and reside in different states.

Are you sure it's not a fake bot?

Would they be able to pick ads from Google AdWords? I opt for search only so my ads do not show on AdSense sites.