Hi,
Yes....you are out of luck. MYW dining can only be booked on a package and can not be booked with DVC points.
However, two things:
1) the DDE can be purchased by Florida residents and Annual Pass holders so if at least one person in your party is interested in buying an AP then you could get it. You would have to work the numbers and the wants. DVC has a discounted AP but only for DVC members. I am assuming from your post that you're not. That's nice that you were given the points!!!!
2) There is some talk that DVC might be putting together some kind of dining plan but it is only "talk". But who knows so watch the DVC boards for any news that might come before your trip.
Hope this helps. Have a wonderful trip.
Lisa