We currently offer a massive range of downloads for FSX, as well as older flight simulator add-ons for the ever-popular FS2004, FS2002, CFS3 and now becoming ever popular with dediced virtual aviators is Laminar Research's X-Plane series.
There have been a few hardcore helicopter enthusiasts that don't like the new easier to fly helicopter model. I think we did the right thing making the helicopters a little easier to fly (and fixing the bug with the stability problems on the JetRanger were critical as well), as more users are enjoying the helicopters than ever before. This means the popularity of helicopters in the community will go way up! That's good for everyone.
If you want to make them harder to fly (and closer to what FS9 had) then try these adjustments. I haven't tried them myself so don't complain if they aren't a magic fix for you
In the Bell's aircraft.cfg there are stability scalars in the [helicopter] section:
low_realism_stability_scale = 1,1,1
Changing these to something less than 1 will change the ease in which the helicopter flies. Around .66 should replicate FS9 behavior.