French version (search result / navigation) + Meta infos

Hello, I am using catch base pro (french version) and I have three questions. 1st : How can I change the text displayed when a search returns no result? As of today there is : "Désolé, mais votre recherche n'a pas été touver. Merci d’essayer avec d' autre mots de recherche" which is really bad French. The correct phrase would be : "Désolé, mais rien ne correspond à vos critères de recherche. Veuillez réessayer avec d’autres mots-clés." 2nd question : how can I change the navigation at the bottom of each article? Today I have "Previous [Name of previous article]" and "Next [Name of next article]" => Or "Previous" & "Next" is English so I would like either to remove those words or to have them in French which are "Précédent" et "Suivant" 3rd question : at the bottom of each article (either on the post page or when displayed on homepage / archive results) the categories are shown like: Categories 1stCategory, ␣2ndCategory, ␣3rd Category ... => There is this strange ␣ sign that appears... how can I remove it? Thank you so much for your answers! PS : My website http://www.instafic.com/ (password : aaaaaa)