PhotoPost Community - Announcements in Forum : General Discussion
That should clear up any issues being able to post as support is not free and this is why you can not post or search support nor receive product support.
I will tell you without getting to complicated here that the search script works as it is designed to work. The category box allows you to highlight multiple different categories you wish to search or leave it on all categories. It is not designed to work specifically the way you are trying to explain. You want to just select a top level category and have it automatically do all children.
To select which categories you want to search hold down ctrl and click the ones you want to select.