I just tested the same procedure with Yummy FTP, and it worked pretty well ... still I miss the BBEdit functionality as it was easy to save any file to any directory on the ftp server ... Yummy FTP can only save back to the directory that the opened file resides in.
just wait till 1.6… I'm sure allan will come up with a stunning implementation of ftp support.
and… if he doesn't you can ask him your 39€ back ^_^