Internet Explorer - Broken layout [Just take a look PLEASE!]

Guys, I really don't know what else to do.

I've posted a topic at Template Support, but I must deliver the website tomorrow to the client and I still couldn't find a solution for my problem!

My problem is: Only in Internet Explorer, and only in the "Products" page, the layout looks bugged.
What is causing the bug: I have been debugging. When I disable "Category" module, it stops bugging.
What I've tried to do: The file "product.tpl" renders Products page, so I tried messing with it. The categories are set at Content Left, so I first tried removing this line "<?php echo $column_left; ?>". Bug persists, even when categories isn't in source code. It only goes away when I disable Category in admin panel. This made me think, there must be an code somewhere that says "if categories are enabled, then do something that bugs", you know?

My website: www.rc1motos.web669.uni5.net (temporary adress)

Everything looks fine in Mozilla Firefox and Google Chrome.
Everything looks fina also in Internet Explorer at Home or another page. Only "Products" page is bugging.

Please guys, the client just emailed me, I don't know what else to do!!

This is a right reply.

This is down to your theme. If you bought it, ask the creator to update it. If not, I'd advise to compare the default product.tpl and category.tpl pages, and the default stylesheets with your theme's. Try also comparing how this page is rendering in your theme, and with opencart default theme.

I've been working hard on this F**** shit for hours, D** I HATE MICROSOFT

I've tried already to replace files from default to custom theme and stuff, but didn't work

Noticed something. I can place other modules in colunm left and no bug, and wethever I place categories it bugs, in left and right column, doesn't matter, it bugs.

I've tried a lot of different changes in module/category.tpl, no changes
Tried also changes in product/product.tpl

Couldn't solve.

It only bug in "Product" page, and only when "Category" module is enabled, damn, the circle is so tight around the bug, but I can't fuc*** find it.

That's not the default category module right?

No, but even with default's module it bugs

This only happens in "Product" page. What renders it? "catalog/view/theme/mytheme/template/product/product.tpl"?

If so there must be something exclusively THERE that bugs, in Home it's normal... I've added some things to product page, like imagezoom with cloudzoom, added that "sharing" stuff... I'll try to remove that

FOUND THE BUG

product.tpl codification was UTF-8, because of accents (the website is in portuguese)

Changed it to ANSI, and IE stop bugging.

Seriously. F**k MICROSOFT.