Seems like a difficult job, but it shouldn't be. Searched "lost in the details" in discogs, myspace, and last.fm and the only song that came up was of a pop band called Minibar, but it's not that. Since google also doesn't come up with anything when combining song titles (that is, except your own posts, heh) means that this album is unreleased. The only sure way to find out where you got it, is to go to the places you usually download music and search for the song titles. Could it be websites that host artists and allow legal downloads? Could it be file sharing programs? Well, you should know, except in the worst situation that some guy single handedly gave you these songs, in which case, better luck next time : D
Good music however, keep us posted if something comes up!