Upgrade parts available?

I have a Night Ranger, just getting it barely off the ground! I am on a mission with this thing, it'll fly soon...

It'll veer to the side most of the time. I can usually catch it and correct,but sometimes not. I am getting better at controlling it, it should see controlled hovering this week!

It keeps breaking tail rotors. I can glue them back together a couple times, but that's not the right fix. The material used its too brittle, is there something else out there?

Any hop-ups or upgrades at all?

Blue

http://www.ehobbies.com/radio-contro...ht-ranger.html This is about all I could find on this heli I hope that it helps you out some.