Teaching magic spells through weapons

I know I got it to work, I recall just setting the event bit that enables the use of Magic points. From then on, it worked. It did however display the amount of AP or ABP (can't remember) that was gained at the end of the battle. Heh I'll sneak a glance at the hex editor and see what code I used actually.
But seeing as Angelo is replying to this as I write it, he might have the answer

EDIT:
I put this in my event:

$B8, $43 'End

Then I had set the monsters to give AP via FF3usME. After that, I ran through a battle following the event's execution and it worked. Now I will admit, I never did level up until I actually "got" the esper. In my case, I was trying to grant an esper via equipment.
I'm going to grind the AP up and see if the esper is useable. Brb