Hi
I have the "4-CH Dynam Vortex 370 V2 Co-Axial Radio Remote Control RC Helicopter 2.4G RTF" From (www.xheli.com) and:

1- ) the Fuselage (body) of the helicopter after small crash is loose from one of the screw in the Fuselage, and I can't screw it again, so I need a manual or video telling me how I can fix it,
Or that's mean I must buy another Fuselage (body) for this Helicopter.............!!!!!!!????
2-) the Transmitter rudder stick is a little bit goes to the right by default (in center Position – without any touch) so how it well effect on my helicopter or how I can fix it...??
3- ) I try to connect the Transmitter Port (training switch and simulator port) to my computer by usb cable* but it doesn't work, although I try another Transmitter JR on the same cable it work fine…!!!!!
*Note:
The usb cables that I'm use - click this link:
http://www.amazon.com/Flight-Simulat...ref=pd_cp_ba_1

Please help me with my first helicopter I have :-(

You would probably have more luck with your questions in the coaxial forum. That's not a brand that's very popular any more, as it has always had durability issues. So there won't be a lot of people familiar with it.