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 ImageWolf to work with either IE4 or Netscape click on the respective link.


Why are some Images not being downloaded correctly?

ImageWolf may abort a download before completion, if a site or the network connection is very slow. This is to prevent the program getting bogged down on links which may otherwise take hours to download in full. If you are getting too many partially downloaded files, you should increase the timeout delay setting in preferences.