if the node is created by a anonymous user, the label is showed like this:

<span class="profile-about-autor"> <span id="profile-name">guest</span> <span id="profile-phone"></span> <span id="profile-phone"></span> <span id="profile-sig"></span> </span> 

from what I’ve found it comes from the database table 'locales_source' as a blob field type and what it has is this:

<span class="profile-about-autor"> <span id="profile-name">[name]</span> <span id="profile-phone">[field_profile_phone]</span> <span id="profile-sig">[signature]</span> </span> 

my question is how could I override the string in this variables, what hook I should use?

I’ve tried to use: mytemplate_preprocess_node, but it doesn’t have this information…