1. Please make sure you check after 12:00 CST, when results are published. 

2.  We are a performance based network so our main pricing model is CPA, but we do have some offers that are CPM based.
CPA means that you earn money only when an action is made by your visitors. An action can be many things, for example:  a sale, contact request, newsletter sign up, registration, filling a survey, etc.
The rate of each conversion is based on many parameters such as Geo, Vertical, Model of the campaign, quality of traffic, etc.