In laymans terms, copy and paste this link but with your details in it:
ftp://username
assword@ftp.photobucket.com
e.g. if your username was Brom and your password zoo then it would be
ftp://brom:zoo@ftp.photobucket.com
Just load it up in internet explorer, job done
P.S. Thanks for the tip frog, never knew you could do that!