RewriteRule ^post/(([^/]+).([gif|jpg|jpeg|png]+))$ images/post/$1 [L,QSA]
RewriteRule ^foto/(([^/]+).([gif|jpg|jpeg|png]+))$ images/foto/$1 [L,QSA]
RewriteRule ^file/(([^/]+).([gif|jpg|jpeg|png]+))$ images/file/$1 [L,QSA]