Hi,
To connect to Freeway you first need to install Freeway and the connection component which can be found here:
http://www.openfreeway.org/extensions.html, the instructions on how to install are also available here.
Currently it is not the most straight forward install to get both working together, but we can help answer some of your questions.
You can see our test/dev site here:
http://devjoomla15.simplebydesign.co.uk/ - however please be aware being our test site it might have debug code showing or bits not working correctly

...
But it does show both Joomla and Freeway working together.
Hope this helps.