yo i tryed the editing with the collision things and got nuthin.like the other guy said if you change the pl_hight you can se your self under the map but when others see ya you look da same.. i tryed to edit these
PL_COL_SPHERE= 0, 0, 0, 0.33, 0.33 // phase,x,y,z,rad
PL_COL_SPHERE= 0, 0, 0, 0.93, 0.32
PL_COL_SPHERE= 0, 0, 0, 1.50, 0.30
but there are 2 of them in ther yo .. maybe you can post it in here on how you did it so we can just copy and paste it to our's.. i tryed to do it my self but when i got in to a server my guy wouldent move at all...