Don't give up too quickly on Poser 13. If I can learn it, anyone can.

To find your old materials, they should be in the same place. You will need to add your poser 11 runtime to Poser 13.

To do that, click on the add runtime button

Then navigate to where you have your Poser 11 runtime.

You'll end up with something along the line of this

To change the image that is texturing the item

Look for the image map plugged into the Diffuse color. That is what you'll want to change. The rest of the node things you'll want to ignore because they were things you weren't changing with the simple version. I underlined the Transparency to show where to plug those maps. With as little patience and asking here, we can help you learn to use the edit tab.

You can also as shvrdavid suggests, make a request at https://support.posersoftware.com/ to have it brought back.

---

Available on Amazon for the Kindle E-Reader Monster of the North and The Shimmering Mage

Today I break my own personal record for the number of days for being alive.
Check out my store here or my free stuff here
I use Poser 13 and win 10