Missing image in DITA spec content?

I'm trying to run the DITA 1.2 specification content through the DITA-OT 1.5.2.
I'm getting an error message saying that an image is missing: imagemapworld.jpg, which is supposed to be in langref/images.
I downloaded the content from the Oasis web DITA 1.2 spec page, and it doesn't appear to be present in the zip file.
Can someone please add it in and let me know?
Or send it to me directly?
Thanks, Tim.