The correct way to tension spokes is as that says you do tension them its the best and most accurate. Torpedo7 recently had the kits with the tension wrench and all the different nipple adapters for sale.
Otherwise Boony just get a good firm fitting spoke spanner and nip the loose ones up to feel the same as the ones that are already tight. If you get them all the same tension you cant distort the wheel. If you tap a spoke that is tight with a screw driver you should get a mid range ping sound, where if you tap a loose one you will get a dull sound. Be careful not to over tighten your spokes.
If you had to go around and tighten all your spokes then you start at a marked spoke and tension every second spoke (rule of thumb) inners and outers
http://www.youtube.com/watch?v=-K-iNGnEK3w
Its like the sprocket bolts Boony regular maintenance
