Hopefully you will not get yelled at"do a search!"It takes as much time to type a helpfull answer as to be snotty.
I do feel there should be a "beginners"section on this board for those of us that do not always feel comfertable playing with some of the big boys and gilrls here.Preferably moderated by someone with a lot of paitience and a kind manner.
When I check for a flight for Miles on NWA it gives me partner available flights also.These usually seem to cost more miles the the standard(25,000 domestic)awards so I do not really think they are"true"-but that could just be how this allience is set up.
I have friends that do this all the time on the phone with United.You apperently have to call the airline where you HAVE mileage(make sure you have sufficcient millage for the trip in this program)and request the ticket using the code share flight number-or give your trip info to the CSR at your milage program.If that flight has FF seats available on the partner-then you can book your free flight.
You might have to do a lot of homework,having flight numbers and schedules all ready for alternate choices.
Do not go by what the FF website for you airline of choice tells you-there are usually ways to achieve what you want by working with a CSR if you have done your hamework.