With MAVlink connected, move the APM board and you should see the artificial horizon move accordingly.
Remember how artificial horizons work: when the aircraft tilts to the right, the horizon tilts to the left. (Just tilt your head and you'll see what I mean). This is normal! Please don't tell us it's reversed ;-)
In the below example, the aircraft/APM board is tilted a bit to the right, and the full sensor data display is shown ("Tuning" checkbox selected).
Unless you have the GPS module connected, are outside and have GPS lock, the map will not show your current position.
You can see the output from all the various sensors by clicking on the "Tuning" checkbox on the bottom right of the display (circled in red in this image). This will bring up the graphical sensor display. If you click on the legend at the top of it (also circled in red), it will bring up a window that allows you to choose which sensors and data outputs to display.