Sounds like you are using the old LRB4 version Jonny. Did you make an Academy team? If so, forget it and make a Ranked or Blackbox team. Academy has not been switched to CRP yet.
Edit: Looks like made an A team, I assume you are JonnyP on Fumbbl.
With Ranked, you pick your games, Box schedules them every 15 minutes. Box is mor elethal on new players, but I have a hunch you know what's what.
The best way to get the client downloaded initial and check all is good is to clicks Games and spectate a match. It should take a few minutes the first time it loads/caches, then the subsequent times it will be fast (until a newer build is released).
Hope that gets you going!