What version of Premiere Elements and what computer operating system is involved?
If version 11, 12/12.1, or 13/13.1, are you working in the Expert or Quick workspace; if version 10 and earlier, are you working in the Timeline or Sceneline workspace.
What are you seeking - a picture in picture type effect?
With the Expert or Timeline workspaces, you put your photo on Video Track 2 above the video on Video Track 1 and then scale down the photo so that the video can be seen through the transparent areas that you create in the photo on Video Track 2. After scaling the photo, you can reposition it.
There is also, in effects/presets/there are picture in picture (PiP) effects that can be used.
Please review and consider and supply more details so that we can customize a reply for what you seek.