Sorry I missed this post, there's no scene files for The Med Lab or Fantasy Landscape they're some of the oldest tutorials on the site. I'll have a look for the scene files for The Spitfire and Haunted House because I think we have them on the site but I'm not 100 percent sure.

Regardless, I think the best tutorial of these when it comes to learning UV and texturing would be The Sand Speeder there's a lot more texture painting in the other ones whereas in that one you'd pick up more in terms of various techniques. The scene files are in part 1 of the tutorial and UV layout starts in part 10 so I added a couple of points to your account so you can check it out for yourself.

Cheers,
Nilla