The webmaster never finished this essay, but another assessment may be found here.
Here are two screen-shots of Bible-programs the webmaster evidently made for this page, each showing Exodus 3:15. The first image is from BibleWorksTM showing how it appears in the Greek Septuagint:
Notice how it is not just "I am."
This next image is from a shareware program, and shows the same scripture in Hebrew: