You can download PTF from www.pairtradefinder.com/download.html
We have made a quick getting started video which can be seen here: http://www.pairtradefinder.com/demo.html
Each subsequent section of our product PTF can be found in our manual at http://www.pairtradefinder.com/downloads/ptf-user-manual.pdf
To get any data on stocks or stock indices you need to enter codes in a group created with eg. NYSE as the exchange, then you need to enter codes exactly the same way they're found on Yahoo Finance.
SP500 is code ^GSPC
Germany's DAX is ^GDAX
there is always a ^ symbol in front of the code
You can see more here finance.yahoo.com/usindices?
For currencies, futures and forex data, they will need a paid subscription to IQfeed data as per instructions in the PTF user manual.