The user password does not appear in your profile and also when he asks for email, and even when it changes from the user profile and the return earned on either appears
Sorry, I'm having a difficult time understanding exactly what your problem is. Perhaps try two things:
Post in your language to the language-specific boards in much more detail, and/or,
Create a test account for us with a link back to your gallery and someone will attempt to register, then change their password from the user profile.
Either way, a link to your site would be helpful.
Patako opened a thread here:
http://forum.coppermine-gallery.net/index.php/topic,64187.msg318880.html#msg318880
I don't know its its the same since I can't read Spanish, but there are a few keywords that make it look the same.
Gallery: http://www.quickinformatica.net/cpg1410/
<!--Coppermine Photo Gallery 1.4.25 (stable)-->
Upgrade immediately, You are vulnerable to attacks. http://coppermine-gallery.net/demo/cpg14x/docs/index.htm#upgrade
edit- fixed gallery link.