Hi Wafaa,

Yes, you get parameter maps from DKE, which can be viewed in ImageJ and you can choose whatever color lookup table you like.  In FSL, the vector maps you get are after running BEDPOSTX for the tractography?  DKE doesn't do fiber tracking - you need to use their Fiber Tracking module and from that output you can look at orientation distribution functions, etc.

If you want to do quick fiber tracking with your data (not making use of the non-Gaussian information), you can also use DSI Studio.

Cheers,

Kirk