VERY BASIC: Bringing up 2 images in Photosop, getting them ready to cut&paste portion

Some of you are probably laughing at how basic my question is, but I am so new, that I don`t even know some of the elementary.
I would like to transfer one portion of an image to another. But first I have to bring up the two images side by side. How do I do that? (only one appears, or the other.) Getting frustrated. Help!~

Thanks. Eva

Ps: The "Finish Village Idiot" is very helpful. I`ve read a few of your comments, thanks, whoever you are...:confused: :confused:

Open the image you want to cut from first. Select the area and cut it, then close that image with or without saving (whichever you prefer). Open the file you want to paste the image then, then just paste it in.

But first I have to bring up the two images side by side. How do I do that? (only one appears, or the other.)

Window -> Tile

THANX! It WORKED! (Eva)

There ya go, another successful mission from a TeamPS member...... :D