This is how you'd link someone's contactId to a page so the pixel on the desitnation page would load properly.

Your link would look something like this...

http://www.yoursite.com/link.html?contactId=~Contact.Id~

This is a hidden pixel you'd put into the html of your email template. You'd change the link so it's pointing to wherever you installed the files on your server...

<img src="http://testinginfusionsoft.com/solutions/ia_tracker/infusionsoft_actions.php?contact_id=~Contact.Id~&tag_id=257&action_set_id=1383&follow_up_sequence_id=46" width="0" height="0" />