I have set "game services" on one of my game's page. But I will have to register a leaderboarrd ID and enter it buildbox settings in order for it to work. I work on windows, using friend's mac and am publishing to apple for the first time. I have seen the tutorials to upload my app/game and publish on itunes. any help really appreciated.
That ID you assign it, you put the name from the tab of your game in Member Center - ITunes Conect - My APPS - Features - Game Center