Lightbox

I'm trying to create a lightbox.  I've read all the tutorials and watched the demonstrations.  The problem is when I create the lightbox and try to set the triggers I don't get the menu  options the tutorials and demonstrations have in the trigger dialogue box.  I create the scene and I can make the lightbox appear but there is no little red cross at the top right hand corner and I can't create the control to make it disappear with a 'user click' unless I place an object on the 'home' slide.  I want to use the 'Bonus Links' tab I've created that resides next to the 'resources' tab.  I created a 'multiply' cross and triggered it to close the lightbox but it still doesn't work.  I'm really missing something here.