First, you'll need to rotate the original photo using Photoshop Elements. Don't just apply the Rotate property in Premiere Elements or the other parameters won't make sense.
You say that you've assured that the photo is properly oriented outside of Premiere Elements, but simply having it rotated correctly in the Organizer does NOT change the orientation or rotation of the picture. You must edit the original photo in Photoshop Elements.
Once your original photo is properly oriented, it's as simple as using Motion keyframes or the Pan and Zoom tool to pan across it.
Strange -- I had verified that the image was right-side up in external programs. However, when I took your advice and saved a new version in Photoshop Elements and then imported the new image into Premiere, it shows up properly. Thanks!
Glad it worked out for you, Timothy!