photo-objects

How can I extract the .jpg/.png components of an .hpi file?

I stumbled across my rather ancient photo objects disks, and sadly found out the company (hemera) doesn't provide support for it anymore. this has left me with a whole pile of .hpi files. Luckily, I found this information on extracting the jpg and png components of the file. Unfortunately, I haven't been able to get it to work. Can anyo...