how can i change the secondary color of a team?

for example sock default color for memphis is yellow as visitant
i'd like to change it to black

It's all in teamgear.dbf. You might want to check out the DBF Editing Guides over in the NBA Live 2005 section of the main site.

Unfortunately there's a problem with socks. Changing away colour of accessories, will not change socks' colour. And I don't know how to solve this. I tried many values, I changed a lot of them, but still socks have their default colour.