Ha, I understand exactly what you mean. Welcome to the wonderful world of cross browser development.

Tip of the day: Test Often and Test Early!!

Whenever I design a new page or template, I test in a couple of browsers. I don't test at the end, but at every important design phase.

I know this doesn't help you now, but it might help in the future.

That said, I think you got yourself in a bit of a mess. Let me diagnose some of the problems.

1. <?xml version="1.0" encoding="iso-8859-1"?>
The XML prolog messes up the doc type, so I wouldn't be surprised if IE wasn't rendering in standards mode, but in quirks mode.

2. Why do you use mm as a unit of measurement? A mm works good on paper, but not on screen. Browsers are not smart enough to see how wide your screen is compared to its resolution to determine how "big" in pixels a mm should be. Use px or pt (for fonts) instead.

3. What's with all the important rules? You occasionally need one here and there, but you seem to be using them everywhere.

4. height:0px;
There is no such thing as 0px. 0px has the same meaning as 0Elephants, 0Meter or 0Nothing
Use height: 0; instead.

5. What's with all the overflow stuff?? Do you really intend to either clip the contents of the div or present scroll bars?

6. Overall design. I thought you were going to use a table instead? Although I admire your guts by trying to do this in pure CSS, you could have done this a long time ago with a single table (which would have worked in FireFox as well).
Did you check out one of the samples you get when you search for "three column layout css" in Google? Did you use one of those as a starting point or did you start all over?

There is more to comment on, but it's a bit too much for me to explain in a single post, and it might ne a bit too much for you to digest at once... ;)

Good luck and hope this helps,

Imar
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Imar Spaanjaars
Everyone is unique, except for me.

Thanks Imar,

1) I read on this and nevr thought of taking it out until now
2)Watched some video where the guy was using mm for measurements, not going to now.
3)The !important rules are there cause my left and right side column div's wont size down to my footer and I am still having this problem. my divs have border property applied and i was hoping the borders would stretch to 100% of page. It works this way on my site now but not in the offline copy I have that i am trying to get working with firefox.
4) Point taken will imply 0 from now on (I been so concerned with just trying to get the site layout done that i havent tended to details)
5)I hate scrollbars but I know of no other way to put a large amount of data in a <div> tag that users can move the text up and down in without overflow scroll bar useage.
6)Our existing site is tabled and besides if it can be done I'd rather take the CSS approach. I have based my site off this Imar Ii found a good one and II have learned alot from it but i cant seem to get my site working with it. Check it out bud
http://bonrouge.com/3c-hf-fluid.php
5)