Happy Camper,
Looks like I won't be teaching that class, so I can't give any feedback on the book. I did find a bit more info on the Longman site, here:
http://www.longman.com/tourism/
The
English for International Tourism series has 3 levels starting with Pre-Intermediate. I think each level has a student book, cassette, CD, workbook and teacher's manual (naturally). You might check to see if there is a companion website. Longman has lots of extra online resources for other book series, so maybe.
Another book you might want to check out is
Welcome! English for the Travel and Tourism Industry, by Leo Jones, Cambridge University Press
When your searching, remember to look under the "Business" category of publisher's sites and in the bookstore. I kept forgetting that tourism was only a subcategory...
Good luck with your class.