Im running my first campaign on popcash.
My Campaign url is like this:
http://ooo.oooo.com/8949xxxxx7a5-4bf...%&country=%cc%
I added the traffic source like this:

But for some reason all Site Id's are showing as 'unknown' in the tracking.
any ideas please?
You have to check the "Track" checkbox on each custom variables 
Cant believe I missed that!
Thank you kind sir 
thanks a lot
I made that little important mistake on all of my traffic sources too and now solved. Thanks for life-saving trick 