Is ther e special location it needs to be saved in?
When i put it in my add-ons folder to use it didn't show up in game.
I'll check for errors but I don't think I will find any.
You need to save the Colorset.txt in this map:
XP or lower:
C:\ProgramFiles\Blockland\Config\Server
Vista:
C:\Blockland\Config\Server
It will overwrite an other file but accept it
And the colorSet_Name.zip
Whit "Colorset.txt" and "description.txt" in it just in the add-ons map