If it's the one I think you're talking about, it'd be the logos~medium~XX.big file (where XX is the team abbreviation). Otherwise, it'd be logos~score~XX_s.big.
Not that one sir, the overlay before the game starts showing the team name, W-L record, court/arena location, and team medium logos. I was able to edit in the teams.dbf the other teams like the decade all-stars and the european/international all-stars but not the "team adidas".
i opened the logos~medium~ad.big but fsh file only shows "5IVE". what i want to edit is the word "team adidas" right after the medium logo "5IVE" shown in the overlay. The series in the overlay was as follows, Medium team logo (5IVE) --->team name (team adidas)---->W-L record (0-0) of both teams.
That's done in teams.dbf. It could be the TEAMCODE preventing the name change, sometimes the databases are a little strange like that. Try changing the TEAMCODE for Team Adidas to the one used by the European All-Stars.
Dunk Contest: Simple. It's the four players with the highest dunk ratings in the currently loaded roster.
Three Point Shootout: That's more complex, you need to change PLAYERIDs which also means you need to change IDs in other databases so there aren't any inconsistencies. In short, I wouldn't recommend it.