Go into your base folder, there should bea file in it called autoexec.cfg. If not, then create a new text document, and type the following into it:
exec "RevianBinds"
Then save the file into your base folder as 'autoexec.cfg'. Now, create a new text document, and put your binds and settings into it, then save it as 'RevianBinds.cfg'. Examples of how you should layout the settings is below:
r_gamma "1"
cg_fov "89"
bind x "screenshot"
You of course use your own binds and settings for it, that was just an example.