StarCraft 1 - grid layout
No, the original StarCraft didn't allow the changing of the keybindings.
http://www.gosugamers.net/starcraft/features.php?i=a&id=1&start=50
http://www.icyhell.net/2008/05/18/keycraft-v100/
These may help, but they seem a bit technical, so be prepared!