In the UK alot of affiliate marketing is done through cost per sale networks. The big ones being Tradedoubler and Affiliate Window.
Here is how to integrate their backend systems with a performance based tracking system such as prosper202.
TradeDoubler
add &epi=[[subid]]
Affiliate Window
add &clickref=[[subid]]
Affiliate Future
add &tracking=[[subid]]
Commission Junction
add &sid=[[subid]]
nb.it may need to be ?sid=[[subid]] if no other dynamic vars are in url
Google Affiliate Network
add &mid=[[subid]]
ShareaSale
add &afftrack=[[subid]]
Clickbank
add &tid=[[subid]]
nb. may be ?tid=[[subid]] same as cj
Linkshare
add &u1=[[subid]]
So an Affiliate Window tracking link would end up looking like: http://www.awin1.com/awclick.php?mid=XXXX&id=XXXXXX&clickref=[[subid]]
Paste this into your tracking software.
The chances are you wont be able to place a pixel so you will have to manually download a conversion report and upload the subids the old school way. Fun, fun, fun…
If you can place a pixel get them to append the amount= variable so you can track sales when basket value varies.