Ok in Windows 7 here is where you can find the calibration for your interlink, in case anyone else ever needs to know...

Hit start button
Click Devices and Printers
There should be an icon under Devices that looks like a black and gray xbox controller, with USB input device under it.
Right click on this icon and click Game Controller Settings
You should see Interlink under controller and status "OK"
Highlight interlink and click Properties button in the bottom right corner.
The test tab should be displaying.  If you give inputs to the controller, sticks, knobs and switches you should see the plus sign move, the sliders next to z-axis, x-rotatino and y rotation move, and you should see the buttons light and return to dark.
If it's not doing something right, click on the settings tab and click calibrate. It will tell you what to do to calibrate the controller.
Here are the assignments:
Z Axis - Throttle Stick
Y Rotation - Rudder
X/Y axis - Elevator Aileron Stick
X-Rotation - Flap Knob
Button 1 - Dual rate 2 Position switch on the front left of the controller, above the throttle stick
Button 2 - I assume this should be the Top Right switch, smoke in my case, but i can't be sure, as mine will not work.
Button 3 - Red Reset Button on the bottom left of the controller
Button 4/5 - Three position switch.