ok so i striped a gear on my first servo so i went and bought a new one and they come with the arm facing inwards and i have no idea how to move it any one know how?

Oh my goodness you got one for the wrong side........... LOL,........Sorry. Easy fix.
Take the screw out of the servo arm, pop the arm off, and flip it around., reinstall the screw and you're good to go..

Note: you can buy replacement gear packs for the servos, instead of buying a whole servo.