building team is pretty easy...click create standard team (not mixed) and follow the instructions, team name, stadium name, motto are required, then build the team ...don't let the computer choose your players...they don't pick optimal builds. once you got the team, you have to select a league (cabal vision, first one on the list if the primary league for pickup games), then a competition (think of divisions....the main one is the largest for standard teams, you will see it at has the most users). once that is done, you just search for a opponent.
I know its hard to explain, but if you want a click by click drop me a line and I can walk you through when we are both in front of a comp