All plugins and stacks work with INTERIOR and with INTERIOR MOTION almost every plugin does work (for example RapidCart not but when you import this page with Blocks it works fine). Collage2 doesn't work with INTERIOR SCROLL, but it does when you import it with the plugin Blocks.
Also a few Stacks don't work with IINTERTOR SCROLL. There are so many stacks (over 150 and most work perfectly!) and almost every day new stacks are released that I cannot test them all. Interior Scroll has more problems with them than Interior Motion. Well, in this case you can use the INTERIOR theme.
When you have a problem with a stack or a plugin, try to import the page with Pluskit or Blocks. If it fails, please don't send me an email… I really don't have a fix for it.
Download a fee DEMO of the INTERIOR MOTION and INTERIOR SCROLL theme here to check all features. It has no menus but you can feel the movement of the Content!
The theme has been tested and is OK with the major browsers: IE6, IE7, IE8, Google Chrome, Opera, Camino, Firefox and Safari (for Windows and Mac). This theme is XHTML and CSS validated.