How do I know if I am logged in?

There is a block of available options on the right side of the page. (Which is possibly how you found this FAQ).
If you are logged into the website you will see your user name as the heading of that block.
If you are not logged in then you will not see that block.

If you wish to login and don't know how read the FAQ: "How do I log in?"

If you wish to request a login and don't know how read the FAQ: "How do I request a log in?"