You are a lucky guy! Although, you don't even bother to explain what your problem exactly is and what the main script of your testlevel is, I had a luck at your code.
And, guess what it is:
Your code don't even _use_ 'c_trace' or 'c_move', which are the only instructions that work with the collision of models.
'trace' and 'ent_move' are old and work only with so called block geometry and hmps.
At the left upper side of this page there is the link to the online manual, read the articles about collision, c_trace and c_move, to get an idea what its all about. Everybody who fiddles with code of this engine has to look into that manual often.