upload pb with anonymous

hi all,
<smile>

still have a problem in anonymous mode like this :
    ftp> put afile anothername
    ...
    553 anothername : Permission denied on server. (Upload)

meanwhile my ftpaccess is like that :
    # Version wu-2.6.2(1) Wed Mar 3 22:51:51 UTC 2004
    ...
    anonymous-root /var/wu-ftp/ftp
    upload  /var/wu-ftp/ftp *               no
    upload  /var/wu-ftp/ftp         /pub/incoming   yes     ftpadmin 
ftpadmin       0666    nodirs
    ...

if I change the <root-dir> for upload from /var/wu-ftp/ftp to *, it works :
    upload  *         /pub/incoming   yes     ftpadmin ftpadmin       
0666    nodirs

but I would like to control my upload without putting * here in my ftpaccess

 > someone already encounter this ?
 > any solution ?

viva debian linux