when they fix the forum and searching the old one I could find it for you,
I shared the link not long before the old forum archived but now I just get my username and a whole lot of gibbberish.
on Android, may try again later on my desktop. http://www.daz3d.com/sections/support/files/carrara_sdk/C8_SDK_18.104.22.168.zip
try the above
took a bit of Google searching with my YouTube channel name and Carrara SDK but I found the post after adding archive after forum in the url
as to C7pr, there is one but prob harder to find at present!
as to how to use it?