This is the main window of QuantumFTP allowing you to browse your computer for files you want to upload. 

This window allows you to input the necessary information for establishing a server connection. 

Here you will be able to adjust a few advanced server options so that they will best fit your needs. 

You can use this window when you want to change several default settings of QuantumFTP. 

Finally, the last tab of the Options windnw allows you to establish the port range and whether you want to bind to a local FTP or not.