I had this problem. I tried using the Adavanced version and allsorts, when i eventually figured it out i felt so stupid! Simply place a block above where you want the drawbridge, assuming your making a door of course, and then place the Drawbridge on the side of that block. The small black hole on the Drawbridge will point in the direction you placed it and then it will output the blocks there.
Hope this helps.
-James
Edit: The arrows on the interface were useless to me, as if they didn't save when i went off the block.