What computer operating system is your Premiere Elements 12 running on?
What version of PowerPoint do you have? See File Menu/Save and Send.
If you have PowerPoint 2010, you should be able to export .jpg and .wmv files from PowerPoint project and import them from the hard drive save location into
Premiere Element 12 with Premiere Elements 12's Add Media/Files and Folders.
Have you been there and done that?
Please let us know if you found the features mentioned in your PowerPoint program.