Hi,I have run talairach_avi with the template I have made, and an input file that is manually skull stripped. I ran: talairach_avi --i <input>.nii.gz --atlas <avgeragetemplate> --xfm talairach_avitest.xfmI had put the <averagetemplate>.nii.gz file in the average folder in freesurfer for this to work. I also have <averagetemplate>.4dfp.hdr , <averagetemplate>.4dfp.img , <averagetemplate>.4dfp.mat in the average folder.Running this creates talsrcimg.hdr, talsrcimg.img, talsrcimg.mat in the folder where I ran the script. However in the talairach_avi log it gives an error saying /Applications/freesurfer/average/<averagetemplate>.4dfp.ifh does not exist! How can I create this file?I found a brief note in a mailing list that mentioned analyzeto4dfp talsrcimg -O0 -y:$Id: ifh2hdr.c,v 1.3 2007/05/05 10:45:03 nicks Exp $ Sat Dec 31 03:27:10 2011 Writing: talsrcimg.4dfp.hdr $Id: analyzeto4dfp.c,v 1.2 2007/05/05 00:00:06 nicks Exp $ Reading: talsrcimg.hdr header size 348 bytes hdr.dime.datatype offset=70 value=2 hdr.dime.bitpix offset=72 value=8 hdr.hist.orient offset=252 value=-1 dimensionality 4 dimensions 256 256 256 1 Reading: talsrcimg.img Writing: talsrcimg.4dfp.img Writing: talsrcimg.4dfp.ifh ifh2hdr talsrcimg -r0to255 ori=2 However, I don't know what I need to run this. Will I need to install analyze and 4dfp to be able to run analyzeto4dfp? Or is there another way to get this <averagetemplate>.4dfp.ifh file?Thanks,-Jeff