How to use the MLS Notepad, located at the bottom of the left frame: 

Enter the 5 digit MLS#s of interest in the boxes (one MLS# per box).  You must fill in your email address in order to receive information back.  Entering your name is optional.

When you are done, or have all boxes filled, click "Submit".  You will receive information about the properties you selected by email, normally within a few hours.  To clear the boxes and enter new MLS#s, click "Clear".