Welcome rockshox.

Glad to see new members
For the custom team, go to the patching issues forum and there is a stickied topic on the subject
For the created players, download a dbf editor (such as dbcommander or cdbf) open up the my documents:arrow:nba live 2003:arrow:saves:xxx(xxx being the save number of the roster or franchise with the created player that you have to save):arrow:players.dbf Scroll down to the very bottom and you will see the name of your player, scroll left and you will eventually see a 7 letter code (such as zzzbzeb) use that code for the xplayer folder eg. instead of rosmith for rob smith use that 7 letter code. Also if you plan on using facepatchs or skin patchs for that player you must check the facepatch box.
Another way, you can go to the same file, change the iscreated to false, the isgenerated (if on true, which is usually only for game created rookies) to false, and change the 7 letter code to rosmith for example.
THIS METHOD REQUIRES A CYBERFACE
Hope this helped.