The box to the left of this window contains the word "Reports" - if you click there, you can see who is in this group.  Notice my name is in blue - that means that anyone can click on my name and view my information, and it also posts my weekly run miles/time to the right of my name - if your name is in black, it means that you have it set to private and only you can view it.  To allow others to view your workouts, you will need to do the following:

Click on "Options" in the top right corner of this page.

Next, click on "My Log Preferences".

You will see a section titled "Training Log Access" - to the right of it will give you options that will allow others to see your site.  Click the appropriate box.

Click "Update".

You're all set.

The options tab will bring you to the page that you need to customize your site.