problem in loading Map in opengl

[ZOD]

Hey i am making a 3D car Racing Game for my semister project. I am
using VC++, opengl. Till now i have learned a lot in Opengl,Studied
ASE format and Imported a 3D model of car and other stuffs, by Loading
it in from of .ASE file( exported from 3Ds max).Now i have to make a
map and Import it in Opengl. But Now the problem is that i am unable
to get the detail of a .BSP.. or i should say.. i have no knowledge
about .BSP files, except i know they are MAP models and i have seen
then while playing Counter strike.!! :)
i would be very thankful if someone could help me out in

a)How to make a .BSP( but for now due to time shortage, i am thinking
of using a already made .BSP file.. but still if you have any idea how
it is made)

b) How to load a .BSP file.( if possible plz mail me or direct me to
some documentation of .BSP , how they are written and readed??)

c) If you could mail some demo or working example with source code..

or should i use .map file rather than .bsp... coz i have to lack
time.. i need to complete the game in 2 weeks