CRAZY stuff happening in IE. HELP!

Sorry to be a double poster, but I just realized I was adding questions onto a resolved post and was worried no one would check it:

My site looks great in Firefox, but it’s doing something weird in IE. I was having problems with my images in my posts. “align=right” was pushing all the text down.

Someone on this post:
http://wordpress.org/support/topic/71902
suggested there was a bug in wp-Andreas09 (my theme), so I replaced the code they suggested, which fixed it, excpet that the images were now overlapping into other posts. So i played with the code some more and fixed the images, but now the title (just a simple <h2> text at the top) and the borders between posts (along with the text for comments, permalinks, etc) keep appearing and dissapearing and I have no idea why.

This is the code I changed in my style.css:

* html .entry, * html .entrytext {
overflow: visible;
height: 1px;
}

* html.entry p, * html.entrytext p {
width: 99%;
overflow: hidden;
}

you can see that there is a space between html .entry (which was left unchanged) and I took the space out of html.entry p

Anyone? Please?

My site is http://www.uncoolkids.com if you want to compare the nice version (firefox) to the awful one (IE)