I've downloaded a Facebook application (it's a .sis file) and I was wondering how to transfer that file to my phone so I could then install it? Should I just copy and paste it on my memory card using a card reader or do I have to do some complicated things like download this and that and use this and that? I just bought my phone and I don't know how to use it that well. Please help me out, any sensible and helpful answer would be gladly appreciated. 