Go back to the old FTP command line version. It's very simple to use and you get the full message plus control over various things.
The one command I'd try is...
I won't write about firewalls...
I have tried to FTP a number of remote servers using both IE7 and Filezilla. I have the correct login details and can connect. I can view files and navigate folders. However when I try and upload a file it tries to transfer and then stops and error says it cannot complete the transfer.
I get the same issue with both FTP clients. I have upload file permissions. I've also tried using a cable network connection (not wireless) plus tried my desktop as well as laptop, same issue with both !
I suppose next thing to do is contact my ISP (I'm in the UK), but a friend has the same ISP and has no ftp issues.
Any ideas or advice, much appreciated.