FTP Upload using QNetworkAccessManager

[replax]

Hello,

Currently, I am trying to write a program which should upload a file to an FTP server. As recommended in the QT Docu., I chose to use QNetworkAccessManager's put function instead of QFtp. As far as I know, I should be able to access the FTP Server without using any security measures.

QUrl uploadurl("ftp://ftp.drivehq.com/wwwhome/"); 
uploadurl.setUserName("XXXXXX"); 
uploadurl.setPassword("XXXXXX"); 
uploadurl.setPort(21); 
QNetworkRequest upload(uploadurl); 
QNetworkAccessManager *uploadman = new QNetworkAccessManager(this); 
uploadman->put(upload, file);

QUrl uploadurl("ftp://ftp.drivehq.com/wwwhome/"); 
uploadurl.setUserName("XXXXXX"); 
uploadurl.setPassword("XXXXXX"); 
uploadurl.setPort(21); 
QNetworkRequest upload(uploadurl); 
QNetworkAccessManager *uploadman = new QNetworkAccessManager(this); 
uploadman->put(upload, file);

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Basically, this is the code which should perform the upload.
However, the file will not show up on the server. The file is about 1-2kb "big", and is opened as ReadWrite.
Has anybody got an idea what I am doing wrong?

Thank you for your time!

cheers
replax