I don't know what you are doing wrong, but here is Kurt Angle from 2007 and he enters with his gold medal.
Have you watched all my videos, the entrance attire for Ric Flair 2009 / LOW works perfectly. I have not tried Sabu 2008, but I'm sure it would work too. You have to convert the models to 2010 type, for the game to read them correctly, then you have to update the sizes of them.
The game is expecting the size value inside the arc file and I'm sure it is the right one. I even verified in the old games, I could find the same values. I don't think there's any other file to edit as I'm doing this thing on Wii and I'm just adding all the new models in the same ch.pac file. So Any Idea ? That's why I wanted to know if you did test those chars and if there was any problem with them. I'm going to see if I can find any other "non working" entrance attires.
Well, I can't see what to edit, what part is it exactly ? The thing I don't get is that some entrance attires are working, and some aren't. I just tested all the 08' chars with entrance attires (There are only 10). 6 entrances out of 10 did work (Austin, Taker, JBL, Cena, Piper, Bret). The ones which didn't are Booker, Mysterio, Flair and Sabu. Why ? I Don't have any clue.
Edit : also tested all 09' chars with entrances attires. 9 out of 12 entrances did work (Taker, Edge, Jeff, JBL, Carlito, Punk, Cena, Kennedy & Palumbo). The ones which didn't : Flair again, MVP & Chavo.