Instructions:Could not find these with a search so don't think they have been posted. Both codes curtesy of paid to shop:
Curtesy of Heatherbelle
XX25CCX expires 07/10/07
Spend £15 or more on DVD's CD's or Games from Tesco.com excludes the grocery site and earn 250 points.
Curtesy of Welsh Dragon
XX6YP3 - expires 07/10/07
250 points when you spend £15 or more on books from tesco.com. Freedelivery when you spend >£20
Both seem to be valid via tesco Jersey which offers 10% via quidco.