Looking for categories plugin

[ApplePro]

Hello guys,

I'm trying to create forums with 5 levels of categories. I want to make top 4 categories to do like categories, not forums, so user can't post there. I want to allow users to post only in 5 level category.

When I use it as is, users can post in categories of all levels (there is New Thread buttons, thread list).

When I try to apply Forum Manager > Edit Forum > Act As Forum -> No, those categories look ugly (not like usual). Here is example: Act As Forum -> Yes and Act As Forum -> No.

What I want is to find some plugin to fix it. For example, plugin that will hide New Thread buttons and thread list. Or something else.

If you know how can I fix it, please tell me.

Thanks.