My sites are NOT compartible with IE 8- CSS Horizontal Drop Down Menu

After I upgraded my computer from IE7 to IE8, my websites drop down menu are broken. I have click on "compatibility view" each time to make it look right. How about my customers who don't know such thing as "compatibility view"?:(

What can I do fix this problem so that everybody can view my website right, no matter they are using IE7 or IE8?

My sites are:
http://www.roseforlove.com
http://www.thesbeauty.com

Where did you get the code for the dropdowns?

You can add a meta tag in your code to tell ie8 browsers to use ie7 compatibility mode automatically. Google it.

Yes its a bandaid, but so are so many other things with ie.

I download the add-on called "CSS Horizontal Drop Down Menu" from the free software add ons.

kiddo:

You can add a meta tag in your code to tell ie8 browsers to use ie7 compatibility mode automatically. Google it.

Yes its a bandaid, but so are so many other things with ie.

thanks for the tip. Which file should I add this meta tag on?

kiddo:

You can add a meta tag in your code to tell ie8 browsers to use ie7 compatibility mode automatically. Google it.

Yes its a bandaid, but so are so many other things with ie.

Yes, I googled it, and found out I needed to add IE=EmulateIE7
code on the header. But I still don't know exactly where I need to add this code?

ANYBODY CAN HELP???

Please tell me step by step. Thanks!!