Open question: Document permission .........................?

hello. In my place of assembly. I wish disturbance 404, OR she should readdress to the Home Page if it to be clicked on some folding sheet or documents (only to unite documents) like one this. does. I estimate it done my changing document permission. at present these documents are 777, which I them inside to the different kinds. changed. then notworking my place of assembly they are real sample files. or to be can this change, which took place through .htaccess explain to me which simply to come in .htaccess in order to let some documents readdress as the Home Page. Ill ones come the way of the document thanks