Installing extensions for Concrete CMS is a simple process. Let's go over some of the different sections of the Add Functionality page that can help you get information about installed extensions and to download and install new ones.
Each installed extension is listed in this section. Select the Details button for further information about each extension.
When you look again at your Dashboard > Add Functionality page the list of add-ons Awaiting Installation should update to reflect everything you assigned to this site from your project page.
First click "Download", and then you'll see the listing show up in the Awaiting Installation section with an "Install" button.
Click Install and you should now see above, in your currently installed add-on list. You're done!