Icons for links using locale

Hi,

Because I don't know too much about php I've been using (drupal 4.6) locale for adding icons to several links like "read more", translating it for " leer más", for example.

I've been trying to do this way with drupal 4.7 and it is not possible, it gives me as result: leer más, showing all the html tag and no picture.

Is there any way to keep on using this method with drupal 4.7?

Thanks in advance.