I'm working on my fMRI data using FSFAST v.6 tool. But the first step of Preproc-sess was failed with an error :" ERROR: cannot find AFNI command 3dvolreg.afni ". 

I found a thread that had the same error with mine (in FS v.5.3) : http://www.mail-archive.com/freesurfer%40nmr.mgh.harvard.edu/msg37764.html

But the link to download 3dvolreg.afni doesn't work. Is this the same 3dvolreg.afni for v.5.3 and v.6?

Thanks,

Trinh