Photoshop is an image editing program but it does not rely on an imported image. The tools within the program can produce an image also.
Bridge CS3 has a several features to help organize images. Usually if one wants to open an image, one would navigate to the folder that holds the image and click on it to open it. That displays the thumbnails of the images in the folder.
To process a RAW file in Camera Raw – or if it is a jpeg, tiff, or PSD – to process it in Photoshop – click on the thumbnail and go to file>open, or double click to open it straight away. So far so good, and that is the normal way to handle files for processing.
However, holding the Command key while clicking on thumbnails, highlights all the ones you click on. With multiple files highlighted, one can open them or one can move or copy them. It is this move facility that helps one to organize new images in Bridge.
In order to move files, go to file>move to>Choose folder, and click through the folder hierarchy to the folder you are looking for, click OK, and that will move the files.
Suppose one has downloaded new images from a shoot to a folder and one now wants to move or copy some of those files to another folder. One can create a new folder within the shoot folder and then open the files in Bridge. Or one can create new folders in Bridge (file>new folder). One can create new folders in Bridge but one cannot rename them, so a new folder simply remains untitled folder and if one creates a second folder it becomes untitled folder 2.
One of the advantanges of creating a new folder in Bridge within the set of open thumbnails is that one can create the folder on the fly and then move files into it, simply by dragging them to that folder. It is as simple as that.
And if one wants to copy the files rather than move them, hold the Option/Alt key while dragging.