ftp highport security in susefirewall2

Hi I have to open the high ports on my ftp server and am thinking of: FW_ALLOW_INCOMING_HIGHPORTS_TCP="ftp-data" But the SuSE script seems to suggest "yes" rather than "ftp-data": <snip> # Common: "ftp-data", better is "yes" to be sure that everything else works :-( FW_ALLOW_INCOMING_HIGHPORTS_TCP="no" </snip> Any advice? Thanks, Steve.