Hi, Jeffrey. Welcome!
Try the Hub (see sticker in this forum) or bittorrent. There used to be an FTP but I think it is down for some years now. For bittorrent try Shareaza, as it has a friendly interface.
What's a similar application?
No-one's using ftp. It's all bittorrent and p2p programs. The only other way I can think of is joining or starting a trading tree. They have been popular here before. There were a few discussed before Christmas, but nothing has come of them yet as far as I know.