Categorization Scenario

Hi everybody,

There is a scenario and I need your suggestions about it. I would be grateful if you could lead me.

The scenario:

Taxonomy

1 - There will be parent and child terms in the vocabularies that will be created on administrator panel. (Done)
2 - The parent and child terms will be manage by some users that is defined as admin for their parent and child terms. (Done)
3 - The contents will be published by admin on their own groups and their homepage will be specific (Done)
4 - Listing the both of terms on their group pages (Need suggestion)

I have tried solving these three issues by using OG Vocabulary based on Organic Groups. I think it is worked well. A group is created and then a user is defined as admin. The admins can create their groups, their vocabularies and terms for their groups. But the fourth thing is also necessary for the scenario but i don't have any solution about it, the parent and child terms should be listed on their group pages. I have used Views for listing the terms but It is not worked. I have also read some discussions about this integration but there is no progress as I see.

What to do for the fourth?

PS: I also don't need to use Organic Group If these all on the list can be done with another way without Organic Group and OG Vocabulary