Why my Webform special token values not rendered correctly in D6?
In case anyone comes across this, I finally found a thread confirming that Webform tokens in D6 do not support arrays, and I had to apply a patch for the functionality to work.

This is NOT a problem in D7

http://drupal.org/node/824606

Patch - http://drupal.org/files/nested_tokens-824606-13.patch