How to Get the Parent Community of a Community Using PRC

Greetings,
Using the PRC, I am trying to build a heirarchy table of all of the Communities a particular user has access to.
Stated another way, I want to be able to build a tree of all of the communities a user can access, and display them in an explorer type graphical object(treeview).
Through ICommunityManager I CAN get all of the communities (step 1). But beyond that, I am unable to find the communities' parents(I have found no way in the PRC to ask for a parent community) so I can iteratively start the treck up to the top of the heirarchy and down to the bottom.
The Adaptive tag library has tags to get parent, sibling, and child community URL's of the current and any specific community, so I know it can be done, but the tags do not help me to build the tree beyond the current community's parent (At least I have not figured out how).
Has anyone done anything like this? Could you direct me to the appropriate API's or approach?
Thank You.

Have you thought about using pt:standard.tree instead of rolling your own?
Chris Bucchere | bdg | [email protected] | www.bdg-online.com

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