uh, you installed it in your main EUIII DW directory, didn't you? try running the MEIOU launcher and click in >On New Version, Click here< and then Clear Cache, after this select MEIOU as the mod (the launcher is still like the EUIII one, so you need to select the mod in the list) and play
Thanks, it works now (IDIOT FORGOT TO CLICK >On New Version, Click here< ), I started a campaign with Bosnia (1391.), it starts with the death of a great monarch (Tvrtko I Kotromanić

. I immediately got a conquest casus belil on Raška and declared war on Serbia and took, quick war, then I got conquest casus belil on Ragusa (man it was hard to click on it to declare war, its so puny), annexed it in a short war. Hungary offered me an alliance which I gladly accepted. He declared war on Serbia and took northern Serbia and I took a province from their montenegro possessions. Than Hungary suddenly canceled the alliance and was pissed at me for no reason. I got an alliance call to arms from Milan on Venice. I took Hvar, Brač and Split (can't remember the in game name, but the small province and islands), took Istria and the province above venice but only annexed the Dalmatian province. Declared war on Serbia again and took Kotor and Cetinje and vassalized it because i don't want to have a huge border with the ottomans. I love the mod, the best EUIII game I have ever played, the balkan provinces are so awesome, the system...everything.
EDIT: I love the muslim green color of Bosnia

and cant wait to start a Hum campaign, a Croatia, Montenegro, then Serbia, then Ragusa, I wonder if they have slovenia?