1. I get an "unable to open the specified browser" error message. 

The browser path is not set correctly in Preferences. The Browser field must have the full path to the executable file of your HTML browser. 

For information on setting up BookMarx to work with either IE4 or Netscape click on the respective link.

2. I am unable to load my Internet Explorer Favorites int BookMarx.

BookMarx is not able to load nested favorites folders. This is a known bug, and will be rectified in the next version.