Thank you for the reply, I think I must be being a little thick here I am not sure I am neccessarily understanding what you mean ofc, but .... If I mirror the object, I get the original object that I copied in the first place, and i know that uploads fine.
Breaking it down, I have 2 objects, A and B. Object B is a mirror copy of Object A. Object A uploads no problem. I need Object B to be the mirror of Object A as I have a symetrical build. When I upload Object B I get the DAE Negative Scale issue. If I mirror Object B i get Object A back, if I then apply a mirror to just the verticies, I am back to Object B, and have the same problem uploading again.
From the sound of the problem, I can't use a mirrored copy of a part of my build to upload it from Max, as it will produce a Negative Scale Error, so I am going to have to actually build the mirrored part, thus extending the develop time. Making some of the time saving short cuts for big symetrical builds, not worth using.