Create FTP user ?

[warcrosoft]

Hi, i need to create FTP user witch can Read/Write/Exec all data in '/var/www/virtual' directory, i already try to change 'gid' and 'uid' in 'vhcs2->ftp_group', 'vhcs2->ftp_users' data base tables to '33' it's an ID number of 'www-data' group in my computer, but then that user can only read. What ID i should try, maby there is another way to make FTP user.

SORRY FOR MY ENGLISH