Hi, I've done this for a few tours. Have a look at Hotel Tour and click on Room Info on the top right of the menu. This will open a seperat menu for the rooms. When you click on one of menu items the scene will change and a popup opens.
You can add this action to any button or hotspot i.e. action 1 Link to scene, action 2 open pop up.
I also like to add web links then to an image.
Check out this demo I'm working on. When the tour starts you'll see an open window. Click on the "hier ein Beispiel" button to close that pop-up and open a second one with a weblink on the image. I used a button and added the action. Test Link
Hope that this helps.
iPanomedia "The social people" MAC Book Pro, CS5,5, Canon 7D, Sigma 8mm