Performics has a pretty cumbersome interface, but if you click the "Get Links" tab and select "by advertiser" you will see all the programs you've joined (make sure you have been accepted into the advertisers' programs first!). Then, if you select "available links" (or "build your own links") from the dropdown on the right and click "go" it will take you to a page where it talks you through the process.
At some point you'll see a box with the ad code - just like Adsense.
CJ's interface is better - Get Links -> By Relationship, then select View Links for that advertiser and Get HTML or Get Javascript. Again, you need to apply to and be accepted into the programs first.
(Too basic, or is this what you were asking
?)
CPA is a more "active" model than PPC - Writing some presales copy to go with your links will produce the best results.
