Hey people where do i get Css cfg files for buymenu and controls ???? plz help me

The one that I use is:
http://www.geoffreyhuntley.com/projects/counter-strike-script/ and look there for the script. I like this one because it can be used for 1.6, CS:CZ, and CS:S.

Another useful one is:
http://www.counter-script.net/