My setting match yours, dragoon, except for the port setting. I tried leaving it blank, but my version of Filezilla wouldn't let me -- kept telling me I had to enter something. So I put 21 (the default) back in.
BUT, while looking in the "advanced" section and decided to try the "passive" connect mode. Sometime this helps in Dreamweaver while connecting with fpt to a server, so I figured it was worth a try.
AND IT WORKED! Go figure. Not mentioned anywhere in the instructions, so it must not be normally needed, but it seems it is for me.
Thank to Dragoon for the advice and to John for the offer of email help. Now I can start uploading!