XHTML PHP Dynamic page spacing problem

[DouglasWD]

This problem is driving me nuts, but I think I finally ahve it narrowed down to
the problem.
In this website I'm trying to embed the image display program called "Gallery"
which is an open source free PHP driven program/script.

I've gotten it embedded and working fine, except for one annoying problem. As
you will see, there is a spacing problem between the top banner table and the
td background image in FireFox only. When viewed in IE6, the problem goes away.
Since I know IE is not as compliant as FF, the problem is most likely in how
the strict XHTML page, required by Gallery, is displaying something is does not
like in FF.

In any event, I've stripped all gallery css links and the gallery itself out
of the page.

[url]http://northwindcharters.net/gallery/main.php[/url]

If you go to the main site index, you will see how it should look in both
browsers. I'd sure like some help on resolving this in FF. I've exhausted my
knowledge and worked literally hours on it using the FF plugin called "Web
Developer Tool" editing css etc.

Thanks much.

[DouglasWD]

Anyone have any idea on this?