the driving school is in san fierro,in doherty next to the house you can buy.(lower right)
flight school is in bone county,dunno where havent gotten there yet.
you can still get in the airport with out a license on the 1st island.find the gate to the AP and there should be a brick wall,park a car next to the wall,jump on the car then jump the wall.
an easy way to get a pilot license is to get in the AP and just fly the planes around.do flips, barrel rolls,fly it upside down,whatever,just get some flyin time in and before long it will give you your licence.
find the dildo or the parachute yet?