Hi, secathor. Congrats on the new Mac.

When you get your Mac, download aMule (use the latest CVS build from
here) and run it once just so it creates its configuration directory. Then, quit it.
Now, navigate to Home -> Library -> Application Support -> aMule. This is aMule's configuration directory. You should be able to copy everything from eMule's configuration directory to there.
Then, run aMule. Go through the preferences and make sure everything is set up the way you want it. From there, it should all work fine.