I made a small tool just to unlock the licensed team in edit mode so you can change ingame the logo, name and stadium. I think a lot of people know how to do it with hexeditor but this tool is for the others that can't understand hex.
Download: https://dl.dropboxusercontent.com/u/3884721/PSP%20Team%20Unlocker.rar
Just open the ID00015 from OVER, change the radio button to ES and then "Desbloquear". Done :)
I don't release this to any other forum because everything I learn about hex is from here so its an exclusive but feel free to post in other sites.
PS: Its the first tool I release for PES on PSP and I hope its not the last, so please help me correct some bugs or translate something (as I said before, can't write in spanish).