On the 'beadwindow' issue- there really isn't anything to worry about. We were briefed that the entire course content was unrestricted (it's all in books), and for those military personell due to go on the course, a quick chat with any of the old hats in their unit who have already attended the course will give you an idea of the format. Besides, they outline whats going to happen at the opening brief in any respect...
The pup tent was great. It used a new issue bag (the type with the larger head opening), two pebble eyelets were created at either side of the foot section, tied up with a bendy saplingdug in both sides. The head end was peged down on both sides with pebble eyelets, then a two foot stick used to hold the 'chin' part of the bag up (this formed the highest part of the tent). The excess hood material which would usually be behind the head was folded up and afixed to the top of the stick sforming the door. Its really hard to explain it in words, but it really worked- looked complately solid, no sags, taut oll over.