Ok, my husband looked at this, and he says the "count" parameter in the php function "str_replace" (that is used to set the value of $level for the code added to lib/ubbthreads.inc.php in the mod) was introduced in php version 5.0.0. Our server is using a lower php version, so the value of $level in the mod cannot be set.
Also, for some reason, in the new Gallery forum, the Hop To menu didn't appear at the top, but down the bottom where it used to be, was the full menu - sort of like embedded there. Not sure if this is also a PHP version thing.
Anyway, until our host gets their act together to upgrade their PHP, I'll have to abandon this. I will come back to it though.
