Hi there, just a follow up. I was stuck on Marie's board with a lack of apple pies and this is what I did to overcome the problem.
When the game starts loading click on the LIGHTENING BOLT. Go to the co-op discussion tab and ask to see if anyone has any apple pies to sell and ask them to put the on the co-op selling board. Go to the co-op selling board and buy the pie(s).
I have received no help from zynga on the forum and had to work this out for myself through sheer determination and **** mindedness.
I hope this helps out who are still stuck.