Yep, unfortunately I realized what was going on long after the download. While they clearly have the right to ask for payment for bundling the dmg, these sites masquerading this stuff as if it's not commercial are bothersome. I didn't see the 20 day freeware license bit until after I installed. I guess I should read those installer texts more carefully but really, who has time?

After I realized my error, I downloaded htmldoc from macports and now it's working great. Thanks.

-david