[Skunkworks] FTP issues

Hi all, Am having a squid proxy server in a CentOS environment. Am trying to configure it to allow FTP access to be allowed but to no avail. I have set the folowing acls' "acl ftp_port port 20 21, l ftp proto FTP HTTP, http_access allow ftp_port, http_access allow ftp" Any help would be highly appreciated. Regards Kevin