It is normal for a new tank to be cloudy when starting a cycle. The cloudiness is more or less a bacterial bloom, but that only last for a couple of days. In your situation I would guess the cloudiness and debris that is floating around in your tank is probably from the wood you have in there, and maybe from the plants? Do you have a power head in your aquarium? A power head would be helpful because it would help move the water around in the aquarium, and in conclusion would help your filter collect more debris. If you do not have one, or do not want to get one, just let your tank run and the debris and the cloudiness will eventually clear up. Do NOT do any more filter cleanings until your tank is completely cycled, unless absolutely necessary! And you made a good choice to cancel the plant order. Adding more plants to an un-cycled tank would change the "chemistry" of the water, and may slow down the cycle. After the cycle is complete you can slowly add plants, just as you would fish.
-Hope this information helps!
FHM, thanks for you reply. Well, I goofed up a bit. I cancelled the FISH part of my order, not the plant part. They arrived today and are now happily living in my now very slow-cylcing and quite full tank. C'est la vie.