Where can I get a copy of "Giving Up" by Curtis Mayfield?

I was told that giving up was a song sung by Curtis Mayfield by a yahoo answers participant. If in fact they are correct then where can I find the song on an albums or a download.

One CD is -

Curtis Mayfield:
Give It Up: The Best of the Curtom Years 1970-1977

Available on Amazon

Try to Limwire. I usually find a lot of stuff I'm looking for there.
I didn't tell you that though ;-)