Balance cant be overlooked as P47 noted. It's worth the time to go back and check the CG (Center of Gravity) again, to make sure it's where they suggest in the manual.

Ailerons: Move the transmitter's aileron control to the right, the right wing aileron should move up. If not, then reverse the aileron servo via the reversing switch on the transmitter.

Wont take-off from the ground: As suggested above, make sure the batteries are fully charged. With a new battery, sometimes this can take 18 to 24 hours to do.

Also: Do the wheels rotate freely and are they aligned? As ridiculous as this may sound, roll the plane by hand on a smooth flat surface. The plane should roll freely and come to rest slowly by itself under its own weight, and stay somewhat in a straight line. If not, correct as necessary.

When you do get it flying: When it's flying towards you...move the aileron stick towards the wing that you want lifted.

Good Luck!