I booked Alicante july with my points..I am not sure when spending points, that covers airport charges and the ADP - I am not sure, But i think you points just cover the basic fare.
EDIT:
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Terms and Conditions:- Promotion is only valid for registered myJet2 users.
- Promotion is only valid on new bookings made in relation to Promotional Flights booked between 15th February 2012 - 31st August 2012, inclusive.
- Promotional flights are subject to limited availability.
- Points are redeemed against base fare only and all standard taxes and charges are payable on reward flights.
- Jet2.com reserve the right to amend or remove this promotion at any time prior to customer booking.
- All other terms and conditions as per the Jet2.com and myJet2 website apply.
Your points just cover the base fare.