Hi Tracy,
Using "3dresample -dxyz 2.5 2.5 2.5" may or may not be correct.
It depends on having the same bounding box and orientation, too.
So -master is a more sure way to get them to match.
The 3dToutcount error does not seem to have anything to do with
the resampling, as it is complaining about not being able to
locate the pb00.*.tcat dataset. The command shown there does
not have a view on it. Is there a missing +orig? Given that,
are you actually editing the proc script? It is better to
alter the afni_proc.py command and not the proc script, unless
it is absolutely necessary.
- rick