Replay Gain: A how to informational

OK, I’m new to the Fuze AND to Replay Gain AND especially to Media Monkey.  My Fuze contains about 3 GB of music.  I’d like to apply the Replay Gain feature, but I haven’t a clue how to proceed.  Here’s what I’ve done so far:

Downloaded and installed Media Monkey

Transferred entire music library to Media Monkey (I was using WMP)

I analyzed the volume levels for all the music by leaving the process running overnight.

Now, the question is:  how do I upload just this new volume/replay gain information to my existing sets of playlists on my Fuze?  I have no clue. 

I’ve done everything else without the Fuze connected to the computer, and I have generated a long list of Replay Gain values.  So how do I update just those values on my existing music?

Thanks for the help!