that patch is not something like a "plugin" that you just put in the right subfolder and forget about it. you must patch the source code and then compile that changed code to get a version that has that feature (patching is easy: just use "patch -p1 < patchfile", but if you are a newbie you might have quite some trouble compiling your wine. if you are still willing to do so have a look at the wine wiki, it should help you). and if you really choose to do so get yourself the current code as found in the git repository - CoD4 will be working with that. if you don't want to compile your own version wait until the next official one comes out (should be next week?), then you can at least enjoy CoD4.
