problem with ftp file permissions

[xtragicerror703]

debian:~# ls -lah /var/www/virtual/domain.com/htdocs
total 16K
drwxrwxr-x 3 vu2004 vu2004 4.0K 2010-01-26 02:16 .
drwxrwx--- 9 vu2004 www-data 4.0K 2010-01-26 02:19 ..
drwxr-xr-x 2 root root 4.0K 2010-01-23 14:31 imgs
-rw-r--r-- 1 root root 1.5K 2009-12-09 01:43 index.html

FTP error im getting.
an error occurred while copying a file to the FTP server, Make sure you have permission to put files on the FTP server.
Details:
200 type set to I
227 Entering passive mode (192,168,1,103,131,35)
550 index.html: permission denied.