If the movies fail to load the most probable cause is that a firewall is blocking QuickTime from accessing the internet, or that you don't have the latest version of QuickTime. You have 2 options:
1/ If you supply your details below we will be happy to send you information on how to access our content using QuickTime.
Or
2/ Alternately a large percentage of the movies have been converted to play in using Flash instead of QuickTime, this format circumnavigates most of the issues that prevent users from accessing the content, a full list of training titles playable using flash can be found here > Training Playable Using Flash