On this page, I have a few class conversions that I have done. They are by no means complete. The Monk has only a few of the D&D class features on it, and the Paladin is missing the warhorse (which is odd, since I remember working it up beforehand). If they get updated, they will be fixed here as well.

Barbarian hdp file Barbarian html file
Monk hdp file Monk html file
Paladin hdp file Paladin html file
Ranger hdp file Ranger html file

Here are some Feats in hdp form. The html listing is here. Note that the last is an html file, so if you click on it, it may pop up in your browser.