My warcraft studio help

To anyone that knows what it is. When i open "locale-enUS.MPQ" nothing shows up in the side bar.

I was told all game objects were supposed to show up in the toolbar. Any advice?

http://i45.photobucket.com/albums/f6...rts/wefwef.jpg


Thanks in advance, all help is appreciated.=D

Can anyone explain how to use this ?:) or explain how to put stuff like houses into my database as go's so i can spawn them ?