use webmin(GUI) tool
use the webmin(GUI) tool to remote administration of your server through web browser.
if you do not have you can get it from webmin.com, there you can get information how to install it.
connect to your server through webmin
1.go to system/users and groups
2.click create a new user
create an username,
put the path of your Home directory(if select directory option),
let webmin pick the user id,
select as shell /bin/sh,
click on "normal password" and choose a password,
leave all other as webmin is offering, and ckick create.
that will create an user with a pass
try now to ftp to your.domain and log in as user/pass