PHP-Nuke 7.9 (latest chatserv patches)
AT 1.77

I have an interesting problem that may be more to do with PHP-Nuke and its implementation of phpBB (they call it nuketoBB) but someone here may have come across it and solved it. Basically I have created a new style for the built-in phpBB forums to match my AT theme but I cannot make it stick from the phpBB profile. What I mean is the new style is correctly installed and appears alongside the default subSilver in the dropdown options box for phpBB styles. But it makes no difference to the forum style. If I set the default style to my new style in the phpBB admin panel then it works, even if I don't force it to overrule the "users" choice. But the weird thing is I know the original method must work a little because even with subSilver as the default style (not overriding the user choice) the phpBB admin panel, member list module and private messages module all show the new style. The only difference being the admin section of phpBB sets its own cookie and the memberlist and private messages part of the phpBB are moved out under the control of the CMS and its cookie but still use the phpBB style.

So... why isn't the built-in phpBB forum correctly setting the cookie? I even forced it in the MySQL database but it still uses the phpBB board default. I have seen many and conflicting ideas on what the cookie fields should be set to in the phpBB admin bit so that it is in harmony with the PHP-Nuke cookie but none seem to work properly.

Any ideas?