Booh at people being impatient.
Seriously, it’s been what, four hours? Not everyone lives online, you know. 
As for your humble question(s): you’ll probably need to learn to script to do that. Making barges move or making cranes lift stuff is somewhat similar. You’ll have to look for tutorials on a) general scripting and b) script_mover entities. The latter can do pretty much anything, you only need to tell them where to go.
As for conveyor belts which can be found on an airport’s baggage hall: I don’t know if it’s easy to do. I know Duke 3D could do it, but AFAIK, there’s no way to easily push the player or other items around in W:ET. Maybe you could use some target_push triggers, but I’m not sure those’ll work as it should.
Note how my post does not contain links to tutorials. I’ll just give you a link to the Mighty Google to look for tutorials. One of the first mapping is to try to find answers to questions on your own, otherwise you are just dependent on your mentor.
EDIT: Oh, you could still enter the keywords I mentioned above in this forum’s search tool. It could turn up some more interesting results than a plain old Google query.