Cannot see old videos, I need tegrity software [on hold]

I have old videos (around 2003) made by my professor but I cannot read them anymore. Those videos are packed in a folder where there are a default.htm, a broadcast folder where inside there are slides and .twl files.

How it should work, by clicking a default.htm it shall be displayed in browser but today it doesn't work because I shall have that tegrity software I think. I tried all the way to get it on internet, but I could not fix it.

Tegrity content creation and delivery solutions allow you, the learner to view a recording of classroom instruction or training via the Internet. The recorded content may contain instructor’s writing, drawing, pointing and highlighting with content, audio, video, slides, close-up video, snapshots, screen recordings and quizzes

Can anyone help me to be able to see again those videos? Did anyone face the same situation?