On this page:
http://ai-depot.com/Features/Tutorials.html

error links:
http://neuralnetworks.ai-depot.com/Tutorial/Recognition.html
http://geneticalgorithms.ai-depot.com/Tutorial/Overview.html
http://geneticalgorithms.ai-depot.com/Tutorial/GAclass-Motivation.html
http://geneticalgorithms.ai-depot.com/3-Minutes/
http://neuralnetworks.ai-depot.com/3-Minutes/

You are not alone with the problem. I also am experiencing the same thing from two totally different computer setups.

I am getting them as well. Seems like this section is all that is working.

http://www.heatonresearch.com