There is a video on how to download and install the Profit Automation Tool software.
This is the direct link to the video: https://www.screencast.com/t/H9QhhPnIE
Below is the step by step instruction as well.
1. Go to http://www.russhorn.biz/premium/spl/pat/downloads/ (make sure that you are already logged in when you click on the link)
2.  Click the Download button
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3. After downloading, open the file and double click on the .exe file.
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4. You will see the installation wizard, just clic on Next until it finishes the installation. 
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5. When done installing, open your mt4 platform and you should see the PAT under your Expert Advisor of your Navigator window.
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