Also is there any way to open multiple window and fax viewer windows so that you can compare two photos side-by-side? Thanks for any help on this one!

I can make a suggestion for thumbnail views, but I don't know if there is any way to view multiple 'Windows Picture and Fax Viewer' windows.

First, open a window containing some folders. In the top Menu Bar, click on the View tab, and choose Thumbnails.

Then click on the Tools tab, and Folder Options. Once there, click on the View tab; near the top will be a button that says 'Apply to All Folders'; click on, and then click on OK, and now all your folders should open with Thumbnail views.

this is not fax viewer but the windows photo viewer .same program allmost me thinks
you can open the same photo twice in the viewer and use the maximise button [the one i have circled in red in the attached file ,]on both images after opening and you should be able to resize a little with you mouse ,by dragging the sides of the photo .to see both pictures

I need to be able to show 'Before' and 'After' photos side-by-side and I can't at present. I would appreciate any suggestions you may have.