You know how it is.  When someone mentions they have a Photography/Photoshop issue, I try to see if I can come up with a simple easy-to-follow answer. 

Yesterday Janice Sutton was looking for some Botox for a set of home staging photos.  It's that same old problem of too much backlight flooding in through the windows. 

Just looking at her photos, it struck me that merging the images in Photoshop might be the quickest fix.  Especially since it looks like Janice has some photos showing the view out of the window, and others showing the room interior from basically the same angle.  I'm using two of Janice's images here.

The screen shots in this demo are from Photoshop 7.  This is equally doable in later versions of Photoshop, and in Elements.

1.  Choose images that are similar in size, shot from the same angle.  One with the view out the window properly exposed,  Choose one with the room interior properly exposed.  Open both images.

2.  Click the Magnetic Lasso tool.

3.  Trace (lasso) the outline of the window, (in the view shot)  clicking at each corner to anchor the lasso. 

4.  When you reach the starting point, click to close the rectangle.  The lasso will change to the "marching ants" outline to indicate a complete selection.

5.  Click the Move Tool

6.  Then, click to place a checkmark in Auto Select Layer.  This will save having to reselect the view in a later step.

7.  Click in the selected view, then drag the view from the "view image" into the image of the room interior.

8.  Position the view as closely as you can in the window frame, then hit Edit -> Transform -> Skew.   (If you had not checked Auto Select Layer, you would have to lasso the view all over again to do this.)

8.  Grab the skew handles and pull outward, inward, upward or downward until the view is properly nested in the window frame.

9.  Be sure veritcal and horizonal lines match up.  When you are satisifed with the "fit", hit Enter to apply the transformation.  You'll need to repeat the process for each window section. 

Important note:  In Photoshop Elements 5, the skew tool is found under Image -> Transform -> Skew  (insted of Edit -> Transform)