And take the bad reviews of FW transportation with a grain of salt. I like the internal/external setup at FW much better than some of the mods where there are several theme park bus stops. I like that everyone catches the theme park buses at one location - it seems more "fair" in regards to getting a seat (or even just getting on a bus). I've stayed in the cabins and not rented a golf cart, using the buses for primary transportation, and I didn't have any trouble getting around.
You will get a map when you check in, and there are maps posted in the bus stops. Buses with "Outpost" on the front will be headed toward the Outpost where the theme park buses are. Buses with "Settlement" on the front will be headed to the Settlement area where Pioneer Hall, Trails End, and the MK boat are located. So if you are going to either the Outpost or the Settlement, you can get on any bus with those showing. The tricky one is getting to the main pool at the Meadow Trading Post. Unless they've changed it since April, that was the Orange bus from the cabins. The sign on the front of the bus would alternate between Orange Settlement or Orange Outpost and Meadow/Pool (or something to that effect). I carried my map with me the first day of my first visit, but it really was very simple and easy to get around.
I just wanted to put in my own subjective opinion about the bus system that refutes its negative reputation. Buses to and from the parks were just as reliable as any other resort we've stayed at. We rarely waited longer than 5 minutes for a bus, sometimes we sat, sometimes we stood, just like any other bus system. The internal bus system was fine--if we had just missed a bus, we just started walking toward our destination and caught a bus at the next bus station...or the next. Didn't bother us, we were on vacation. Leave yourself adequate travel time, as FW is sort of remote, but doesn't it take a while to get ANYWHERE in DW? And the boat to MK is GREAT! 
