Typo3 Blog Extern Categorieextension fixing

I have a small extension that make: - including extern categories from extern database in the Typo3 GMBH blogextension or all blogs global, make possible that the categories can configured about category mount make that the backendmodules from blogextension works with multiuser. That what i want that that works, only works if the user is logged in(the be login cookie is set). How it should be: - Only the Categories on sitebar at blogpost they used by this post. - In the blogfooter showing the categories too. (it works so if logged in at the exactly Domain) That dont works too if logged in: The categoriepostcount (the small number at the categoriename in sitebar) have to count only the posts of this blog and not global. How it works now without logged in: - In the sitebar its showing all categories from sitelevel 0. - In the blogfooter it dont shows categories. - the categoriecounts are counting global Without destroying any blogfeatures or typo3 features. clean work for sure :)