If you are already a member, then check your email from Disney. At the bottom of the letter is an offer for a Bonus Code worth 5 points. Sorry there is no actual code to print out.
You have to click on the link in your letter. It takes you to the sign in page.  Sign in and the code is automatically added to your account. Expires 4/30/10.
(Up Date) Found this code on another site so you can enter it if you do not get the Disney newsletter.  9JO9EYRM34K
Click this link to sign in and use the code