Frames problems on Mac ? Any idea why ?

Hi

I've had to quickly redo someone's frames he did within Adobe Go live..and the damn code is foreign i tell ya.

So I've quickly thrown together my own code in dreamweaver, of which i thought was good..and on a PC it looks great, but on a MAC there is supposedly a huge white space between the two frames.

If someone could help me out with this puppy of a MAC issue, I'd appreciate it.

the URL is
http://www.autogrill.ca/version2003/index1.htm

and for the info on how i put up the site in frames here is a reference URL i threw some info up on.

http://www.autogrill.ca/version2003/help_file.htm

The look it is suppose to have is what is currently on there now.
http://www.autogrill.ca/home-1.html


*** UPDATE ***

http://www.autogrill.ca/version2003/...5/home_rg3.htm
does that work and look like a match on a MAC

Thanks for your time and energy.
Ryan