The trick seems to be that Blogsome uses a file called locale.php, where all of the data is stored. I’m giving up on this one, as the solution I’ve provided is better than anything I can come up with as a more complete solution for now.

{capture name=archives}{get_archives type='monthly' format='option' show_post_count='1'}{/capture}
{assign var=monthly_archives value=$smarty.capture.archives|replace:"January":"Enero"|replace:"February":"Febrero"|replace:"March":"Marzo"|replace:"April":"Abril"|replace:"May":"Mayo"|replace:"June":"Junio"|replace:"July":"Julio"|replace:"August":"Agosto"|replace:"September":"Septiembre"|replace:"October":"Octubre"|replace:"November":"Noviembre"|replace:"December":"Diciembre"}

And then, where I want the dropdown to be:

{$monthly_archives}

You could use format='html' instead, or whatever you already use in your template.

This code is generated by {the_category seperator=", "}.

You could use the same trick:

{capture name=cats}{the_category seperator=", "}{/capture}

and then:

{$smarty.capture.cats|replace:"View all posts in":"Opinion todos los postes adentro"}

This looks to be the only way to do so, since the_category has few arguments (the one listed above, and parents, which shows the hierarchal tree of categories).

Matthew: The title atribute in the categories of sidebar show the description (in spanish) of the category. Is the same way in posts?

Muchas gracias, thanks. This the best blog to help to blogsome users. I try to save de wall of the language.