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I found the program called O edit. (Found out about it from da_andy, who did not have a link) here is the adress: 
http://www.fifamexico.net/descargas/FIF ... ramientas/ 
It's a site in spanish, but its the first item on the list, so it shouldnt be too hard to find. 
O EDIT will allow you to edit the court shapes, i.e. lines and logo positions, it will also let you texture them. 
Also if you have win XP use the compatability mode for Win98. 
Textures and what the texture 
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odrn = = Dornas (Scorekeepers table front) 
olin = = court lines 
olio = = key area and block 
otbl = top of Scorekeepers table 
ovnl = = chair seat colors 
tbak = = chair back design 
tbbd = =back board and supporter 
tend = = end of court art work 
tgla = = Center court logos 
tlgc = = designs in corner of court, i.e. stars on dallas court 
tlgd = = arena name/logo 
tlgo = = ?????tunnel logo????? 
tnba = = NBA logo for court 
If anyone has additions or something to change post it here and I'll edit. 
I'm not sure but i think you can name custom textures what you want, as long as you map them to the right faces using O EDIT.