BMW join the diffuser row

With their appeal thrown out in Melbourne under a technicality BMW were bound to complain at Sepang. They have done officially and looking through the reports the stewards have cleared the Brawn GP, Williams and Toyota cars. It looks as though BMW have used the sporting regulations to complain according to the official documents whereas I believe that the other teams used the Technical regulations in their arguments? This could further compound the court case which is due to be heard on the 14th

http://www.fia.com/en-GB/mediacentre/f1_media/Documents/mal09_document_29.pdf

http://www.fia.com/en-GB/mediacentre/f1_media/Documents/mal09_document_32.pdf