I just want to thank diablothe2nd for finding a way to install it.
In fact if I had known it could be done this way I shoudn't have installed an Acard in my (other) A1200 but the fast Ata MKIII or MK IV. I think this way you could install a Bvision at least with the old Indi. Don't know yet with the new if it fits. Now I will have to wait for the Sata Controller from IC to speed up my (now) Idefix Cf Hd, as the Acard can't run OS4.1 (yep, I'm using two Cf Hd in my miggy; Idefix and Acard).