NewDelhiSEO - 8:54 pm on Oct 13, 2010 (gmt 0)

hmnn... thanks for your insight Ted.
I feel this has something to do with the browser caching.
Normally people set long times into the future using php headers or equivalent. In that case the page wont look for a fresh file if the name is same.
To override that probably these people use a query string approach.

But some expert advice would be welcome. heeeeelllp