Character concept/3d modelling: Ahh Zbrush! why you so confusing?!

So out of all the new software I had looked into the only ones I seem to be able to use, are 3ds max and blender (sort of) . Zbrush is really confusing simply tasks are made nearly impossible, such as opening a new frame or deleting an object, I have to restart the software every time, its a nightmare and not very user friendly. I've managed to change the head a little and add some details such as scars and such, I really want to add the hair as I think it really will transform the model but the best tutorial I can find, has no commentary and has been sped up so I cant follow it but the end result is exactly what I want :(
My tutor helped me find a pre-made 3DS body for me so I can simply put my head on it, I chose the body from the character Chris Redfield from Resident evil 5 as its just the right build for my character and has the right clothes I was imagining for him, plus it saves me modelling time. I opened the body in 3DS Max and removed the original characters head and replaced it with mine by merging the objects together from different scenes, after re-sizing it to fit the body I noticed that it looked a bit odd, rendering wise, on closer inspection of the wire frame I was told by my tutor the body had been 'tesselated' to allow for better quality rendering, what this means is after a model has been created in 'quads' (four sided polys) a tesselation modifier is added which splits all the polys in half into triangles, which confused/annoyed me because all the tutorials I have viewed say I MUST work in quads because the modelling process will flow better :/ Oh well I'm no expert so I can only go with it.