With the release of AutoCAD LT 2009 there have been many changes. One noticeable difference is the Quick Access Toolbar located in the top left of the main screen.
I created my own workspace & well, it disappeared. Here's how you add your own buttons to it. Open the CUI & drag from the command area to the Quick Access Toolbar, located under your created profile. Once there they will show up in the title area of AutoCAD LT 2009.