AFNI should be showing all the volumetric files in "tlrc view", which refers to the data being in a standard space. You can see what space and what "afni view" a dataset is with this command
3dinfo -info -av_space mydset.nii.gz
The same command can be applied to many datasets at one time like this:
3dinfo -space -av_space -prefix ~/abin/HaskinsPeds_*.HEAD
HaskinsPeds +tlrc HaskinsPeds_NL_atlas1.0
HaskinsPeds +tlrc HaskinsPeds_NL_template1.0
HaskinsPeds +tlrc HaskinsPeds_aff_atlas1.0
HaskinsPeds +tlrc HaskinsPeds_aff_template1.0
To apply the HaskinsPeds space to a dataset like the datasets produced by FreeSurfer, you can change the space of a dataset with
3drefit -space HaskinsPeds mydset.nii.gz
