Yep... SLOW DOWN!
OK... the Arow is a decent beginner's package. Nothing wrong with it. BUT... If you don't slow down a bit and listen, you'll pile it in mighty quick. (if you don't slice open a finger starting the engine.)
Get some in-person assistance.
There's NOTHING wrong with starting with a basic 4 ch system. The servos, RX and airborne battery would cost almost as much as the complete 4 ch radio system. If you stick with it... your next radio can be that nice 6 ch or better computer radio... and if you get it on the same frequency... you already have 2 flight packs.

If you get it on a different frequency... you can bring 2 planes to the field ready tofly... and have less chance of having to wait on a frequency pin. (you just can't lose...

)