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I was interested enough to download the files and install it on my test site. All went very easily
The package expects you to download the XOOPS files that basically adds the xoops_version.php file and an admin icon.
then you need to uncomment line 22 in index.php and change the setting to 3, like this $z_embed = 3;
Upload all the files to a folder called zina in your modules directory and install as usual.
The module appears to work well, although it appears to have several administration options and setting up.
It aderes to groups permissions, but I have not tried to see if it retains indevidual users settings. It may well do so.
Does not use database, all files are stored in the modules cache that needs to be writable.
Maybe some others could try the module and see if it's favorable? I will probably use this for a while and see how it performs.
Thanks for the lead,