Paid Subscriptions - URL Steps
 

Hi I wanted to track how successful I am getting people to take out a subscription to my site.
Google Analytics allows me to do this, but I need to know the various steps and the success URL if there is one.
I've done some searching and looked in the manual and can't see anything.
Can anyone help?

I see that we start off at this one:
http://www.example.com/forums/payments.php
Move to this one:
http://www.example.com/forums/payments.php?do=order


But without spending money on my own forum I can't see what's next.