Yes, the finderscope dovetail foot seems back to front, but that is the way it is designed. You push it in from the bottom, until it stops against the dovetail holder, then tighten up the screw.
Be careful because you sometimes think the screw is tight, then the finderscope falls out! As temperature changes, it can loosen. A tip - put it in place, take out the screw and mark though the hole onto the dovetail foot of the bracket. Then take it out and just start a drill hole the right size - enough to put an indent in place. Then the screw sits in the hole and it won't move all night. It also means you are putting it back in the same place everytime which can assist a little to have the finder close to alignment each time you put it into place.
Glad the focusser is sorted. One screw is a "lock". It stops the draw tube moving and the focus knobs spin freely. The other is a tension knob. You may have to change this between a heavy eyepiece and a light one to stop the heavy eyepiece causing the drawtube to slip. But you only want it tight enough to stop slippage. Too tight all the time and you could do bearing damage.
http://www.iceinspace.com.au/forum/....s/sad_eyes.gif