Some sites don't magnify - here are some:

http://www.smh.com.au/
http://www.abc.com.au/

Can the scripts be modified to magnify these sites.

You're right, it does seem that there's a conflict in the CSS on these two sites. I've been combing through their html code and there's nothing obvious that would make it break, but I'll keep looking...

Interesting that both sites won't save - "Error saving web page - This page could not be saved". Search indicates possibly a security setting in IE and location of css (location other than where web pages & images are located).