The biggest advice I can give is to go through the tutorials in the quick start guides, step by step. There's also the full Cartography suite manual available from the registration page (where you enter your license keys). It's a link down the right hand side. The quick start guide tutorials will introduce the features one by one and allow you to build up a map.
You can ask questions here when you get stuck. There's a few of us using CC3. There's also a Yahoo group cc2-l and the Profantasy forum (http://forum.profantasy.com/)