DVD Studio Pro 3 and UI Scripting

We’re trying to automate the production of DVDs using DVD Studio Pro 3. It’s not Applescritptable so I have looked into using UI elements through System Events. I have been working this for a while and earlier tried using QuicKeys. It seems to me that by using UI Elements I can fully automate everything and I won’t haveto depend on another application. However, I’ve run into a problem. Is there anyway to click and drag with the UI elements. If you’re familiar with DVD Studio Pro(the interface as far as I can tell is the same in v. 3 and v. 2) I’ve imported assets and now want to make a track out of them. To do this you drag the video and audio file from the Assets window to the Outline window. So, I just need to figure out how to drag with the mouse using AppleScript’s UI elements. Please help if you can. Thanks.