Please post new questions in a new thread like here where I've moved this, and:
Please include a link to the DD script(s) in question in your post. See this post
for more information.
I'm assuming this is about:
If so, simply follow the instructions on the demo page, use a unique id/mainmenuid for each menu. Make two of them vertical and one of them horizontal.
Once you get things setup, if the menus aren't working and you want more help, please include a link to the page on your site that contains the problematic code so we can check it out.