Shoutbox

I 've read the file SkinInfo.xml of the skin, and I've tryed to insert the code
<MessengerPlus>
            <TabbedChatBar>
                <Color1><Position X="3" Y="3"/></Color1>
                <Color2><R>0</R><G>0</G><B>0</B></Color2>
            </TabbedChatBar>
</MessengerPlus>

But There isn't any change.

Do you know where I must insert this code and if this code is right

Thnaks you