If you run into problems your first stop should be the OpenRA FAQ.
If that doesn't help you should get in touch (see below) or file a bug on the OpenRA Bug Tracker.
Getting in Touch
The best means of contacting us is via our irc channel, #openra on freenode.
The Freenode web client is easy to use if you don't have an IRC client.
You can also try our forum, ModDB page, Twitter, or Facebook.
We are a small team, so anything you can do to help is greatly appreciated.
This could be as simple as filing bug reports or telling your friends about OpenRA, creating maps and mods, through to helping improve the game engine.
See the getting started page on our wiki for more information.