Enabling VSFTPD through iptables

Question

How do I permit FTP connections on the following IPTables configuration....

Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere            ctstate RELATED,ESTABLISHED 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:www 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:https 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:1111 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ftp 
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED 
DROP       all  --  anywhere             anywhere            

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination 

Answer 1

This is covered already

Check This Link

Try

 lsmod | grep ftp
 modprobe ip_conntrack_ftp
 lsmod | grep ftp

1st command should show nothing 3rd command should show something like..

ip_conntrack_ftp       41361  0 
ip_conntrack           91621  4 ip_conntrack_ftp,ipt_MASQUERADE,iptable_nat,ip_nat

Does this work??