Run git log
and look for commit hash:
9045d8fcbd3ebfb186e6b3b6d96732357ee5c315
To see which files where changed in this commit:
git diff --name-only 9045d8fcbd3ebfb186e6b3b6d96732357ee5c315
Create zip files with changed files:
zip files.zip $(git diff --name-only 9045d8fcbd3ebfb186e6b3b6d96732357ee5c315)
Upload zip to live and unpack it.
You can also use patches for that:
http://stackoverflow.com/questions/4126300/git-how-to-get-all-the-files-changed-and-new-files-in-a-folder-or-zip