I am really confused now. Are we both looking at the same page which is the checkout.php page?
I used fire bug too and did not see any references to those js files at all. Did you look at the checkout.php page after I changed it? The template that the checkout page was embedded in is completely removed and it currently does only have the webassist code generated by the checkout wizard.
If you are seeing those references in the current code of the checkout.php page can you tell me where they are? I have looked using dreamweaver as well as fire bug and don't see anything at all.