You can get to the settings page by clicking on your name at the top. If you haven't logged in, do it and either way you will end up on the "Your account information" page. Under the heading of "Forums" there is a goto/edit button on the right. Click on the edit and go from there. Let me know if you have any troubles, but I'll bet you'll be off and going now.
Gotta scoot. gotta run to the store before the school bus gets home!