Drop Down Menu in Ez Publish

I am using a CMS called Ez Publish. Ez Publish is written in PHP and mySQL. I am building a site at: [login to view URL] I need a drop down menu system installed similar to the one at: [login to view URL] The drop down menu extension I am looking at is located at: [login to view URL] I am new to this CMS so am not sure how to get the menu system going but I am guessing that it will only take a few minutes work to get it going.