In the top left hand part of the tourweaver program choose "Movie REC".
Right click just below the default slideshow and make a new movie, this is the movie you customize for your tour (Note: You can't delete the default movie, but you can make your new movie run instead of the default.) Alternatevly you can copy the default movie and paste it below making a second movie just to edit.
Either way use the scene viewer to choose the scene and position and then right click on a spot (frame 1) in your new movie track to insert frame. Now back to the viewer to re-position the movie and back to the movie track to insert the frame Frame (10) - now the movie will play the 2 points you selected in the movie over a 10 second period. You can slide the 10 frame to 5 or 20 or whatever to get the desired effect.
Now lets say your first scene ends on frame 10, choose a new scene and insert a frame in 12 and you will get a transition between the two - 10 and 12.
Play with it, youll get it, and dont forget to make your new movie the default in the publish settings.
Hope this helps,