Step 1 : Visit http://store.theplusaddons.com/ and Press Login/Signup from top area of Navigation Bar.
Step 2 : In Login Page, Enter your login details. Your Email Address and Password.
Step 3 : From top menu “My Account ” click on “Purchase History”.
Step 4 : On Purchase history Page, Click on “View Details and Download” link.
Step 5 : From That page, You will see purchase details and at the bottom of page, You will have option to download versions of plugin. You can download any of those.
Below is a small video tutorial showing all steps to download item from The Plus Store :