First Login to your Joomla control panel (Joomla back end). This would be DIFFERENT from your hosting control panel (such as cpanel) provided by WHW1 hosting.
Next, in a separate Internet browser (such as Firefox, or IE) go to Ads Elite website page that provides you both the download button or links and usage video. I have saved you the time in figuring this out, and providing it here. Once you are on that site page, you may get confused on what to download. Do the “Download Ads Elite All In One Installer”; meaning click on that button, assuming it is a button still at the time you are reading this.
Once the Ads Elite .zip file download is completed, go to your Joomla back-end control panel, and go to the top menu and select from the Extensions pull down menu select Extension Manager (on Joomla 3.x.x).
Under where it says “Upload & Install Joomla Extension”, click the Browse button with your mouse’s left button, and locate the .zip file you downloaded from the Ads Elite website. Select the .zip file on your computer and click on Open/Ok.