The main window for Audio Catalyst provides you the menu and shortcuts for basic actions. You also have a button for enabling xingMP3 Player 

By using the Setting window you can choose the output directory, the way you acces your files or set the frame's offset. 

The Xing MP3 Settings window allows you to convert the files simply by specifying some characteristics. 

This window will manage the way your file will be displayed, by completing the boxes with the required information.