ftp bantwidth calculate

Hi all
I am using windows and linux HC8.
using gene6 and vsftp for ftp services
but hc8 cant calculate gene6 and vsftp banthwith for ipless hosting
what i need to do for this ?
or which ftp server program supprt this for hc8
because ftp is big part of bantwidth and traffic 

HC don't calculate ftp bandwidth for IPless or namebase domain. But it does calculate for IPbase or dedicated IP base domains.

so i cant assign ip to my all customers ?
just think i need 1000 ip if i have 1000 hosting customers
im using ipless hosting for my standard customers like other hoster
have you any opinion for my problem ?

So 
still im waiting solution
can anyone help me ?