More problems with unwanted background

This is odd, I've never encountered Photoshop elements opening like this.Is this program your default for editing PSD files? If not, can you delete it and just use Photoshop? This might require some assistance from folks in the PS forum.

I am finding it absolutely impossible to work with two puppets from puppet maker -- because both of them keep trying to insert their default backgrounds.  How do people work with this?  I know I can click on "edit original," but that takes me to Photoshop Elements, which does not let me see all the elements of the puppet, so I cannot delete the background properly.  Highly irritating when these backgrounds keep popping up in the middle of a record sessionn.