ie issues

[mington]

internet explorer hates my website

http://www.paramountbathrooms.com

it runs perfectly in firefox

can any one help me sort out the issues i'm having in IE

1.) the site doesn't centre??

2.) image rollovers/hidden text

i've got two in the inner part of this page that are working fine:

http://www.paramountbathrooms.com/ac..._products.html

Thank you