Help with FireFox compatibility

[DarkArcher]

Hi, here's my website people: Click

It looks fine in MSIE 6, but in FireFox it does not seem to work too well. Ok... I must admit I designed it with the intention of IE compatibility though.

There are 2 major problems and I hope you people can help me out =)

1) The navigation bar's border height is not the same when viewed in FF. In FF, the border is longer. How do I make it appear as short as that in IE.

2) The autoflow: auto/autoflow: visible does not seem to work for the .content class. The content div does not expand in FF unlike that in IE.

Thanks,
DarkArcher