Sorry you're stuck but there's almost always a pretty easy fix! Do NOT try to start all over again, eg. uninstall Max's Pitch Package, etc. That can make things worse.
Before you post make sure you check the Help FAQ for an instant solution first. Then, if you can't find it there, you can post your problem here and we'll get to it ASAP (within 24 hours), but be sure you:
post in the right category
INCLUDE AT LEAST ONE SCREENCAP IN YOUR POST TO SHOW THE PROBLEM!!!!!!!!
explain the problem clearly
I messed up my Mtg-03 so I deleted it to make a new one, but when I did and entered it again, it showed up as Mtg-04... so I was panicking and deleted it to make another... which only showed up as Mtg-05. I was wondering how to get it back to Mtg-03 and if that was possible.
Actually, I’m just getting on a plane now so why don’t you give it a try and see if you can do it. It’s not hard, really. Just follow what I told you and it should work.