The message you are receiving...

Error Code 0
Your Browser may not be installed correctly

Is because you do not have a valid application assigned as the default program for .htm files. You will need to assign your browser(Internet Explorer, Firefox, Chrome, etc.) as the default program for opening an htm file.

Close out of the error.
Go into My Documents
Go into the Tournament Scheduler/All-Pro League Scheduler or Stattrak for Baseball folder, whichever software you are using.
Go into the Webgen folder
Locate the file default.htm then right click on it and choose Open With the Choose Default Program.

On the screen that displays, put a check in the box for "Always use the selected program to open this kind of file", then click on your browser.

The site should come up and you should not receive that message any longer.