Photoshop :: See Two Or More Graphical Files In Workspace At Once?

In PS CS3 you could open as many graphical files as you wanted, move them around on the scrren, edit them, then create a new file and copy those into it creating a composite image. 

Now, with CS6, I haven't figured out how to do that yet. If I load an image, it takes up the entire workspace, with rulers going negative to hugely positive with no reason to do so. If I load another image, I can't see them both unless I tile. if there is a way to put ALL files, say 10 of them all on ONE workspace at once?  I'm almost ready to go BACK to CS3!