if the ota has a tendancy to move up it's probably a balance issue.. are you using it with the tension springs on? Mine also has a tendancy to swing upwards without the tension springs attached, it was slightly off balance out off the box but the balance has become abit worse from the 120mm fan.. but with the tension spring attached she stays still.. I'm waiting til i redo my car speakers to sort it out

You can still star test collimate

which asimov is probably the best person to ask for advise.. he thinks cheshires are evil

Does the cap that goes on your focuser have a little hole in the middle? u can use that as a sight cap.. just look through the hole and make sure everything is concentric, then do the star test.. well.. at least i think thats how ur supposed to do it without the cheshire.. asimov..
what do you mean the toucam adapter doesn't fit? it looked right in the picture of it.. you just slot it into the focuser.. it was a 1.25" right? you should be imaging prime focal.. or is it afocal.. can't remember which one it was.. but it's the one where you put the camera straight into the focuser without the eyepiece.. i think. could be wrong though..
el