In general, you should start a new thread, if you have a new question. This new thread's shall reflect a very brief summary of your issue.
As indicated in the docs QFtp is an implementation of an FTP client. AFAIK it is working as traditional FTP clients. At least that reflects my experience. It has several "command line" commands as you know from linux and windows shells. So, if you like to get the file some place else, you need to navigate to this place and send the file. Checkout "mkdir,":http://qt-project.org/doc/qt-4.8/qftp.html#mkdir http://qt-project.org/doc/qt-4.8/qftp.html#cd and the other stuff.
Note: QFtp is deprecated and is no longer directly available in Qt5