kernel 2.4.17 + newnat + helpers, not working :\

["José de Paula E. Júnior"]

Hello..

Today I get the 2.4.17, then made a cvs checkout of the netfilter tree... I 
get to netfilter/userspace/patch-o-matic and runned runnme, selected the 
newnat and the newnat-h323 to netmeeting...

The kernel compiled clean, and all the modules up cleanly too 
(ip_conntrack_ftp, ip_nat_ftp, ip_conntrack_irc, ip_nat_irc, 
ip_conntrack_h323 and ip_nat_h323)

BUT I connected to  FTP, and the PORT error ocurred, and netmeeting and IRC 
doesn't work too...

Theres something I did wrong? Or some rule missing?

(by the way, the only rule present is a MASQUERADE from a 192.168.x.x to 
the valid IP net...)

some help?

[]s
coredump