Originally Posted by subsonic
You don't need a tutorial, or any special tool other than an exacto knife. Your LHS probably assumed you had a knife at least.
Cut a slot with the knife in both the stab and elevator the depth of half the hinge. Feed the hinge into both parts ensuring that it's straight and centred. Looking at your hinges, the little half round notches go on the sides. Ensure the control surface is not so close that it can't reach it's full travel, and hit it with some CA. After it's dry, give it a firm tug to test it.
Thanks subsonic, sounds do-able.