I know what you mean, the website is no help at all.
as for differences, they should be minimal since they use what they call a "jump set" its too complicated to explain, but basically the 2 tours use parts of the same set from city to city. only noticeable diff from broadway is pride rock moving like it did in Toronto, from the wings, not from up under the stage.
and ofcourse the only other diff between the 2 are the casts, lol.
http://www.flickr.com/photos/27199361@N08/ Phantom at the Royal Empire Theatre