ftp update server help

im trying to setup a ftp server so my amiko mini hd combo can just connect and update from it for me and a couple of friends
heres where im at ftp server is up and running fine me and any i give access to can log in and see files
but when i put the ftp line in amiko it says connection to server to get filr list please wait then after about a min says file not found is there somthing im doing wrong