1. First, make sure you are logged-in to your account.
2. You will see is an envelope in the member bar (the orange bar at the top). When you have messages waiting in your inbox, an exclamation point will show on this envelope. Clicking it will take you to your inbox.
3. There will also be a "Messages" entry in the drop-down box under your username that shows how many unread messages you have in your inbox. It will also link through to the Messages page if you click on it.
4. Here you will see your Inbox Messages, your "Outbox" also known as the Sent Items, your Contact List and Ignore List.