the code is vanillachocolatestrawberry...or some other version of that I can't remember

Also - If you wait for like....5 mins on one of the opening screens, the phanton orange shrit guy appears in the place of adee...and the seems to mean that you get more bonuses...Theres some great guides that say all of this and explain it better

http://www.neopets.com/~PatGraham
http://www.neopets.com/~Kallycherry
http://www.neopets.com/~Decebuary

EDIT: Aha...the code is strawberryvanillachocolate