ORIGINAL: Xride
there are free ones?
Yep. The FMS sim is free, but you need a USB cable to connect the trainer plug on the TX to the computer, and it sells for about $15.
[link=http://www.rctoys.com/
pr/2007/06/06/new-low-cost-gws-fms-flying-model-simulator-usb-cable-lets-you-fly-rc-airplanes-helicopters-on-your-pc/]Here is one.[/link]
The latest FMS free software is [link=http://n.ethz.ch/student/mmoeller/fms/index_e.html]here[/link].
This isn't the most glamorous software ever created but it doesn't need to be. It's plenty good enough to get the idea and to get the eye-stick coordination worked out. Hang in there, you can do it.
Keep in mind that the rotor disk - the blur that you see when the blades are spinning - is what's doing the flying. The rest of the contraption is a support package for the rotor disk. So, to control the thing means keeping the rotor disk under control. You need to keep the tilt of the disk under control. The tendency for the newbie is to get all twisted up based on the horizontal motion of the heli and apply gobs of stick to try to stop it, ending up with a large degree of tilt, which promptly sends the heli in whatever way it's tilted at a high rate of speed, renewing the panic factor. Except for a small amount of tilt towards the heli's right side, to compensate for tail thrust, the rotor disk should stay pretty close to level for a hover. Just don't let the tilt get very far off level. Tilt the disk whichever way you need to correct, but not very much, and as the heli comes to a stop be ready to get the disk level. Fly the disk.