There are few things that could be going wrong. Firstly, you need to make sure you have someone to play with as there is currently no A.I. in the game and as it was only recently released there is not a particularly large fan base. If you do indeed have more than one person to play with, start by pressing Enable Match Maker and have one person create a match and the rest join by pushing the respective buttons.
If you are still experiencing problems, pop me an email, with some more details, at benji@benjisoft.org.uk and I will get onto I'll have a look at fixing it.