To manage your items in the ftp using internet explorer please do the following:-
1. Access the ftp using the settings bNetCentric supplied to you
2. Once you have logged in press Alt, click View, and then click Open FTP Site in Windows Explorer
3 You will then be asked to log into the ftp again using the settings above.
4. Once you have done this, it should open up all the files in Windows Explorer and this can allow you to upload and delete from your local machine.