Best bet is to speak to Tony (NutsRS) of here he will do his very very best to sort the techincal query out you have.

Iv had similar experiences and got to say its so dam frustrating.
I do know also that the brackets only go one way as a mate who installed his had
problems too.

If your not overally sure with regard to fitting of brakes in general get a garage to install them.

If its understing how the bells and brackets are to be fitted i.e which way round contact Tony . Like i say he is good as gold mate.