I've confirmed that you are definitely right.
From what I've read
it started with the 1.0.07 firmware.
People with 1.0.05 firmware weren't blessed with this CWA.
However, Cisco has pulled all 1.0.05 firmware off their site, sometime between now and this past March.
It used to be here
From what I can tell, the WRT100 takes the same firmware, but all pre-1.0.07 firmware has been pulled for that unit as will.
Interestingly the sample UI (for 1.0.04 & 1.0.05) pages don't list the feature
The only link I could come across for the 1.0.05 firmware was at a MegaUploads Page
. Yea, I know, it was all I could find. It came from a post on this site
Sorry I couldn't be more help.
In my perfect religion, a giant hole appears and sucks up all the lousy people.
I call it the Crapture.