Change Start Button

How To change gnome main menu button, to start menu button like start menu button in Win XP ??

 

try this

1. run gconf-editor
2. navigate to /app/panel/objects

find a object_x with the "object_type=menu-object".

(my main menu is "object_8")

3. tick up "use_custom_icon"
4. change "custom_icon" value to the image path.