For information on how to access your client panel, see this article.
Go to the Client Panel and scroll down to the MLS Information section:
Select your MLS service
Enter your active MLS number in the "MLS Number" field.
Once you have chosen your MLS Service and entered in the MLS Number, don't forget to click the SAVE button below the Statistics Email field.
Need help getting MLS Sized Images to upload to your MLS Listing? Check out this article here.