I have the solution to the problem... CALIBRE!!!!
use html2epub to generate an ePub file that will work on your 505..
Code:
html2epub --margin-top=0 --margin-bottom=0 --margin-left=0 --margin-right=0 --base-font=20 index.html
That is what I used from the command line and it worked fine. Granted, I did not use any of the options to put in proper metadata.
You might want to fix the HTML so the ToC shows the board number and you may want to remove the index links from the top of each page.