DHTML Menu

I used Sothink DHTML Menu 9 to create a menu, please note that the links point to the HTML pages but my intention is to redirect them all to WordPress categories.

Here is what I did, I uploaded all the required .js files and images to the main WordPress directory.
Next I used the wigit text to post the script into the right hand sidebar.
Last I edited header.php and posted the needed (script type=”text/javascript” src=”stmenu.js”)

It works perfect on the front page, but it is missing from all the other pages, posts, and catagories.

As we know the main menu script is there, then the problem is it is not finding required.js files.

I am also assuming the script added to the header would also be present all the time.

My question is where else to I need to drop these .js files & images to make this work in all pages, posts and categories?

Please note that I just used an existing code, so if you click any link it will take you to the old website.
Here is the link http://www.yonip.com/cms/

Many thanks to anyone who can help me out here.