Vocals on "tune 1" are from DJ Dado - Coming Back. The original release had a Baby Blue mix which was caned by hard house & Speed Garage jocks.

There was a remix put out not long back:
M&C Project - Coming Back
Original Mix: http://mp3.juno.co.uk/MP3/SF182351-01-01-01.mp3
Alex K Mix: http://mp3.juno.co.uk/MP3/SF182351-01-02-01.mp3

No Idea on the second sorry