admin wrote: To get it out of the way:
you have articles with category alias:

http://www.acguanacaste.ac.cr/noticias/noticias-eduacion-biologica

, not

http://www.acguanacaste.ac.cr/noticias/noticas-del-programa-de-educacion-biologica

.

Yes link to articles are comming with that alias which is the category alias, the desired will be with the second method as it is the one form the menu, it also affects that some modules which are placed based on menu settings not to show when you view the article, besides multiple urls.

I sent the credentials by email as requested.

Thanks.