I just upgraded from photoshop 7.0 to CS3. In 7.0 there was an option to center an entire layer under "set layer postion" under Layers. I cannot find anything like this in CS3. Any help?
Click on the layer you want to center, then select the move tool (V), then select all (Ctrl+A). At this point, you can use the align tools on the menu that include center align left and right.