i have the same problems to, but i solved the problem by actually moving the forum from /forum to /forum123
and then all i need to do is change the configuration file in smf's config.php so the server settings will look the forum from /forum to /forum123, and after that i change the jsmf module to find the forum at /forum123, after that the problem is solved... no one knows the right address for my forum since it's wrapped in joomla, and every body should find the forum by entering the main joomla screen first...
i don't know if this method has a weakness yet, is it possible for members to actually see the forum's direct url by looking at the joomla link ??
thanks in advance.
ps : please forgive my bad english.
Forum 









