AE PNG Files disconnect not linked--what is happening?

I recently bought and downloaded a couple of AE motion templates.

Generally I have been using EPS files for graphic elements, but these files all have PNG files.

The files show up when i open up the AE template as the colored bars–all the element files aren’t working.

I’ve tried opening up the file from the original location but they are still not coming up–so I don’t think it’s a problem with linking or a disconnect anywhere.

I’ve even tried to just drag a couple of the PNG files directly into AE and it won’t let me.

Anyone know what is going on or how I solve this?