i would really recommend getting a decent FTP client, rather then using Internet Explorer and Windows Explorer method...

my personal fav is SmartFTP http://www.smartftp.com
FlashFXP is excellent and so is CuteFTP .

tip - you can normally copy the URL to a FTP site and paste it into the address bar of the FTP client and it will load up - without having to put in separete entries for username/password/port etc...

(if using SmartFTP copy the below and it should detect that you want to connect to the FTP site and ask you if you want to do so...)

ftp://ftpupload:ftpupload@194.203.32.99:2121