For updating Brainstorm, you can use the menu "Update > Update Brainstorm" from the interface.
But if you use fieldtrip to do MRI segmentation, you will still get an error.
The mri data is bug tmp1 IPCAS_age10_brain_template.nii.gz.
As I mentioned before, these are not T1 MRI volumes that you can process with these tools.
I'm sorry, I am not going to spend time on trying to make this work. If you want a segmentation of the tissues, you should ask the providers of the templates, or maybe the FieldTrip team.