When you open Filezilla see the uper left corner. In the host name enter your local IP address. It should be something like 192.168.x.x (where x's are specific for your network).
In the field username enter: root.
In the field password enter: sky1122
Then go to local-oscam-and upload your oscam file there
stop used oscam
change the name of the new oscama to the old one and replace it
restart the receiver, go to the browser IP receiver:8888 and see what version you have