You will need a FTP client program which can send "raw" FTP commands. The following example is based on Filezilla (Filezilla is a free FTP program, download at http://filezilla.sourceforge.net)
1. Open Filezilla
2. Login to your ftp account
3. Click Server > Enter raw ftp command
4. Input the following command (substitute oldpassword and newpassword with your own value)
SITE PSWD oldpassword newpassword
5. Press OK
Note: Password must be 3 - 10 characters in length, only numbers and alphabets are allowed
