I have install the plugin all ok
I create a campagne all ok
I will insert a image then start kcfinder all ok
I show my picture all ok
I select the image and then is the url to image not correct.
Is this the file system path or relative to the web root? It appears to be the latter. You do not need the public_html/lists if your subdomain is news.xxxx
Usually people copy the lists folder to the web root directory, so then the url will be something like mysite.com/lists/admin
This allows phpist to co-exist with other web applications as it has its own directory.
A subdomain is not really any different to a main domain, just ensure that the website address on the Settings page is the subdomain.