sorry for the late response but here are some links
for explanations about this isue

<http://www.macromedia.com/cfusion/knowledgebase/index.cfm?id=tn_19480>

OR
<http://www.microsoft.com/technet/prodtechnol/winxppro/mainta>
in/sp2brows.mspx#XSLTsection132121120120

and use find "<!-- saved from url=(0022)
<http://www.yoururl.com> -->" to locate the paragraph fast


i think that microsoft site is well qualified authority

e.g.
when you save a page using IE it add this line automaticly

10x in advanceed