Well, I'll feel like a total idiot if this has already been answered, but I searched the thread for a while and couldn't find very helpful answers to some of my questions. Also, I had a problem with Advance Text.
First is Advance Text. Whenever I try to open it I get this:

First of all, when I first got the file I copied the contents onto another folder instead of extracting them (is that bad?) Also, I've tried putting Advance Text in the ini folder in case that helped. It didn't.
Next, my questions:
1. I did see an answer for this one, but it wasn't extremely clear in my opinion. So, my question is how do I enable the Pokemon tab (without Oak)? I did see some kind of code, but my question is a) can I just copy and paste this code in whatever script I wish and b) does it work in Pokewitch? If not, in which script program does it work in? (I have PKSUVI too, I just don't know how to use it at all)
2. How do I make a script to give the player the National Pokedex?
3. Okay, promise this is the last one (for now): Is there any step-by-step newbie guide for changing Oak's sprite?
Thanks a lot if anybody answers!