what's up with that is that it was supposed to be her first album with her first record label. But that label dropped her, and she moved onto another record label which produced BNN.
the producers of BNN let her put some of the songs that were supposed to go on Rinse on BNN, and for the others, they were, i hate to say this, rejected, which is where her unreleased songs come into play.
That's why you see the songs: Rinse, Twilight, Paradise, Pretty Baby, Prince, sway, and wanted on both albums.
Hopefully i helped, and didn't confuse you too much