Jim,
I had a look at your page and also tried to convert it to iSilo. Seems like iSilo really chokes on the untidy FrontPage html source.
The only thing I would do is use something like HtmlTidy to clean the code, check for errors, and see if iSilo likes that better.
One error I spotted which is maybe the reason why iSilo does not follow the navigation bookmark:
Code:
<p><a href="#My sight data">My sight data<br>
</a><a href="#Reduction results">My noon sight's reduction<br>
</a>
You should not use <br> inside the <a>...</a> sequence; instead, use it afterwards
Give it a try and tell me if you need more help. Btw, DreamWeaver comes with a tool that not only cleans up your HTML code, but also looks for syntax errors like the ones above.
Greets
Alex