Here are all the resources for your DVD. You can choose a template (very professional looking templates) as the main picture of your menu, or choose an image of your own. You can call in any media you need; at the top will be your movies and slide shows, at the bottom are your audio files.
You have the option of viewing thumbnails (as I do here), or titles. You can bring in more media (and images) by clicking on the folder with the green arrow (to browse) or simply drag them into here from your explorer or from your desktop.
Need a button? they're here, too.