I have read previous string on this topic.
http://forums.adobe.com/thread/311779
Solution was to use FlexColor to import fff files and then re-export as DNG and work in Camera RAW.
I have tried this using FlexColor 4.8.9 installed on both Vista(32 bit) and XP (32 bit) machines, both behave identically:
I succeeded in getting Flexcolor to run (it looks useful) but when in FlexColor main window and I click on "thumbnails button", the resulting flyout window offers "Save" but when I click on this I am offered "Batch Save" with Normal and Preview options: the DNG option is greyed out. Saving under Normal just delivers a tif file to the selected location.
Grateful to anyone who can point out what I have done wrong - or suggest a simple way to import Hasselblad/imacon scanner files in fff format into Adobe Camera Raw within CS6 under windows XP 32 bit. Thanks Bill