Adding a signature
Go to the forums, make sure you have registered. If you have not registered, please check out Registering on the forum
Once you go to the forums you will see the following page:
Hover over your username on the forum (in the case of the example, testuser).
Click 'User Control Panel'.
Click 'Edit signature'.
You can now change/edit your signature! Don't forget to click 'Submit' when you are done!