Here are the materials:
Amended opinion–081441P
CA8 Order Granting Rehearing [explains the amendments to the earlier opinion]
South Dakota Petition for En Banc Review
Charles Mix County Petition for En Banc Review
Federal Response to En Banc Petitions
Yankton Opposition to En Banc Review
Rosebud Sioux Opposition to En Banc Petition
Earlier opinion and briefs are here.