Erreur de permission ?

Bonjour,

voila j'ai un petit problème j'ai installer un site internet et donc l'install fini il me trouve une 30 d'erreur , pourriez vous me dire comment change ton les permissions ?

Check file permissions: -
templates_c/ is writable: -
admin/newsletter/files/ is writable: -
admin/newsletter/pictures/ is writable: -
uploades/ is writable: -
uploades/audio/ is writable: -
uploades/banners/ is writable: -
uploades/blog/ is writable: -
uploades/club/ is writable: -
uploades/ecards/ is writable: -
uploades/events/ is writable: -
uploades/icons/ is writable: -
uploades/kisses/ is writable: -
uploades/giftshop/ is writable: -
uploades/photos/ is writable: -
uploades/photos/water_logo.png is writable: -
uploades/stories/ is writable: -
uploades/subscribes/ is writable: -
uploades/taketour/ is writable: -
uploades/video/ is writable: -
include/config.xml is writable: -
include/admin_menu.xml is writable: -
include/newsletter_log.txt is writable: -
include/badwords.txt is writable:

Merci