download problem

I've just got a new bigger iPhone and decided to download all my tutorials onto it. It took quite a while but they all downloaded successfully except Mac OSX 101. It downloads the topic headings very quickly but when I try to launch any topic it says 'this movie format is not supported'. The size of the download is only 108Kb so it looks like it's only downloading the topic headings.
I'm using version 2.1 on my iPhone.
Any suggestions?
Thanks

Hi Interface,

Best to check with our Support team about this particular tutorial:
http://www.macprovideo.com/support/

Thanks for letting us know!
Rounik