If you're going to try the new version with digital photos, you'll need this:
[corrections welcome]
How to import images
It's similar to import of audio or video files. Use Tools/Import Media. Don't forget to check the image file types you want (jpg, bmp, gif, for example).
Viewing images
Select Media Library. In the content view (right window) sort the list by clicking on location, for example. Select the image files you want to see. Hit enter or the play button.
Seeing just image or just audio files
An icon allows you to set MJ to show only images or audio in the library. If this icon is not present, you can right click on the menu bar, choose "customize" and add it.
Toggling between list and thumbnail modes
Choose View on the Menu Bar, then Toggle List Style.
Thumbnail size
You have several options in options/tree & view for how to create and display thumbnails.
How to start a slideshow with music
There are two ways to do this.
The easiest way is to create a playlist and then add both audio and image files to it. Then select it and press the play button in the player window.
The fastest way is to start audio files playing first by selecting them and pressing play. Then select images and hit enter (not play).
The best display for image playback is in full screen and this can be activated automatically by setting this option in Tools/Options/General/Behavior and set "Jump on Play" to "Full screen (if has display".
On the display window, the arrows at the lower left switch among "None, Image, Track Info, and Visualizations". To show images, this must be set to "Image".
Configuration of Image Playback
Start image playback. Go to Playing Now. Right click on the display and choose "Configure Image Playback".
Zoom and Pan
If you have a mouse with a wheel, try using it to zoom in. P for Pan will turn pan off or on. The left and right square brackets adjust the speed of the pan.