Running a public server? Have a "friend" on your server that keeps stealing but don't know who?
World History can help.
Install mysql on your server, and create a database.
Drop the mod in your mods folder.
Start and stop the server to generate config file.
Enter database information into configuration file.
Catch your "friend" in the act.
future versions of this mod will include an embedded database optimized for low player count servers, or single player instances opened to lan.
About the different JAR files,
you have two choices for each version of the mod a mod.jar and a mod-all.jar
the second one is what you get by default, it includes the mod, and database drivers.
if you run into compatibility issues with another mod that includes database drivers or you want to include the driver jar yourself use the mod.jar version, it is just the mod, no database drivers