Your index page is jumbled. See some of your boxes alignments, they're messed up. The overall skin looks VERY nice. Good design, a bit pink, but it's clearly a women community. Love the work done there.
hmmm - the index page shows just fine in Opera - I've just viewed in Internet Explorer though and it seems as if there are a bit of css issues.
I believe there are issues viewing my own forum in IE too though. My opinion is if the user cannot upgrade to a better browser - then good luck viewing the site, as we do not support IE...