FTP Permissions

How do I change the permissions to 755 and stay that way for people that FTP into a web directory. I currently have a problem with people that FTP into the web directory and then can not view them on the web site. It says Forbidden. You do not have permissions to access the file. I have tried to create the "sticky" function and this does not work. The files still get placed as -rw-r----- what can I do to fix this? Neal Haas