Yes, life is hell, and its my fault for not providing the manual.
Lessee... if you assign an item part to a creature part in the wear screen, it turns green. The red bits are the parts that need to be taken care of -- you either need to assign a part to them, or put them through one of the holes. When it is ready, a blue check will appear next to the red X on top. If you press that, you should wear your clothes. The blue check won't appear if there are any red parts that need to be dealt with.
For instance, with the pants, you have the lower body piece of the pants on the right. If you assign it to your lower body, the upper body and both upper legs will turn red, because it doesn't know where they fit. The pants item list on the right has a selection like "hole (upper body)" -- if you put that on the red upper body on the left, it will turn blue. The upper legs you handle in the same way, then the lower legs, then put the feet through the holes. The blue check will appear at this point. Cumbersome, yet possible.
Firing arrows is also bad. You need to designate a target. Target assignment seems a bit spotty now -- you click on the crosshair on the main screen, then click on a creature when it is blinking (or press "cursor" and move to the creature and select it from a list). Then if you press capital F, you'll fire at the creature.
Did I introduce bugs to the travel map? pfft... I'll check it out...