Did you get it to work at all originally? You should ensure that a game functions as it was intended before you add fan-made patches to it.
What else have you done to fix the problem? Are you running the game in compatibility mode? What operating system is this? What is your sound hardware? What video mode are you trying to run the game in?
I believe some z buffer errors relate to ATI cards and number of colors used.
After selecting 16bit from the options, and 2 crashes I managed to run the game
properly (no cut scenes skip).
The problem is at Ati Video Cards, but some of them at catalyst center have an
option to enable 32bit zbuffer.
Thanks for the help and the fast replies. You're great, people.