1. I have a request, for those who are interested, to help me.
2. But I do have a request for those who have justified their use of cracked versions of my work: don't ask for support.
3. I have a request for those who read this site. I ask that everyone send positive thoughts toward my hard drive.
Thanks. I was "arguing" with someone about "I have a request to those who" and "I have a request for those who" and now I know she is right all along, like you said, it is almost always FOR most of the time.