When I upgraded to Leopard, I used Migration Assistant to copy all of my settings and hard drive contents from my PowerBook to my new iMac.
MySQL 5 did work because I can see the databases that I made under the new directory. However, the MySQL 5 Admin GUI (located in System Preferences) did not work.
I found this particular
URL, which states how to fix my problem by compiling MySQL from the source code, but it also acknowledges that it doesn't fix the MySQL Admin GUI in System Preferences.
Would like to know if anyone else using OS X Leopard is having similar problems with MySQL 5 development and how they went about resolving their issues.
Happy programming!