> I'm also having trouble finding/loading the main MYSQL package.

Hmm. 

Colin started this MySQL driver business. But there’s nothing publicly available from him anymore. 
Whatever tantalus was it’s not at his repo now. 

http://source.wiresong.ca/ <http://source.wiresong.ca/>

Try these. 

http://www.squeaksource.com/MySQL.html <http://www.squeaksource.com/MySQL.html>
http://www.squeaksource.com/IOSPersistent.html <http://www.squeaksource.com/IOSPersistent.html>
http://www.squeaksource.com/MySQLtesting.html <http://www.squeaksource.com/MySQLtesting.html>

There’s also this long page of chunk format for a driver. Revolting though this page is, it does have the jdm initials which correspond with the Squeak Wiki page about a MySQL driver I gave you previously. 
It’s probably the accompanying driver for that wiki page.

https://lists.gnu.org/archive/html/help-smalltalk/2007-09/msg00037.html <https://lists.gnu.org/archive/html/help-smalltalk/2007-09/msg00037.html>

Chris 
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