Call Photo in template.php

Hello,

I got an issue, and the documentation is not really full. Actualy i didn’t find any documentation.

I’ve ACF and this plugin. When i call the ACF in the template.php, I can’t see the picture. If I call ths ID, I got the ID on the page (ex : 32), but when I call Object, i’ve nothing on my page.

Do you have some documentation ?

Thanks in advance,
Julien.