Problems with the card counting tutor are usually the result of security settings in Internet Explorer.
However, there are so many different places to make changes to those, I can't specifically recommend what to check. If you work it out, let us know what needed to be changed.
As an easier alternative, consider downloading and using Firefox instead at
http://www.getfirefox.com
By the way, there's a rather annoying and critical bug in the tutor. Split hands are counted incorrectly. And, to make matters worse, I can't seem to locate the source code to make any changes there. I purchased that site and the tutor as-is, but I'm pretty sure I got the source code. I need to look through some old backups maybe.