First, make sure you're logged in:
1) Click the Log in link.
2) Enter your username and password.
3) If you have forgotten your password click the request new password link on the login page. Enter your email or username and you will be sent a new password. Follow the instructions to validate your password, then return to step 2.
Once you have logged in, look at the links at the top of the page. You will see one that says Profile. Click on this, it will take you to your learning profile. Now you just need to edit it.
1) On the right of the page you will see a button that says 'Edit your profile'. Click on this.
2) This will take you to a form where you can edit your profile.
3) When you have finished editing, click 'Submit'. This will take you back to your profile.
4) If you wish to re-edit, you can click again on the 'Edit your profile' button and re-edit as above.
If you want to change your location or the name that displays on your profile, go to your profile, then click 'Edit' and change your details as you wish.