Views Organic Group and Subgroup content merge

Hi There,

I have organic groups installed in my drupal and i have panles and pages which render each groups data and print them to the page. I also have subgroups which are technically groups with another groups as their Group_Audience. now what i want to do is when i render the content of a certain group, also render and show the content of any subgroup they may have!
I render the content currently by reading the node ID from the URL, then get the Gid. but how do i have to get the content of any sub group?
Do i need to right my own .tpl file? and if yes, how do i do that for a page thats been setup using pages?

Any help will be appreciated.

Thanks,
Dara