Use the FTP program to contact directly your network disk address, which is in the form usernamewippiespace.com You obtained the necessary logon usernames and passwords when you created the service. When you have opened the data transfer between your home computer and the network disk, you only have to drag and drop the file(s), in the FTP program usually between open windows.
You forgot a dot. The host name for the FTP is
username.wippiespace.com, and by
username you actually mean the
user ID that displays in the url of the user's space. It's also used as the login for the FTP; this is very weird, shouldn't you rather ask for the username at this point ? I think you should review your explanations.
Also, what are the limitations in terms of bandwidth ? You offer ½GB of space, which is great, but there's no word about the bandwidth. A few more questions. What about domain names ? I suppose people can't use their own ? Is it allowed to use .htaccess files ? And my last (pessimistic) question, is it really going to be a lasting service ? Wippies sounds like the kind of treat Google would offer, but I doubt Saunalahti will be able to cope if the whole thing really takes off.
