I ticketed one of the new Skyteam awards recently and the agent here in California gave me the fare bucket codes Air France uses for award tickets on the Skyteam airlines. (I used Galileo to do my own search first so I wasn't waiting while the agent checked date after date after date for availability without success.) She said the following were what they used for ECONOMY class rewards:
Czech Airlines (OK)--E
Alitalia (AZ)--U
Delta (DL)--N
Air France Transatlantic for F+ Rouge--W
She said that AF Intra-European was X but I can't find that in Galileo. Anyone else have the proper code for these reward tickets, as well as for Business and First class, and for Aeromexico or Korean Air Lines?