How to record mix in Ableton 8

I have made mix 2.5 hours long in Traktor 2 but it has come in three parts and I want to merge them together in Ableton 8 and re-record it into one part. How can I do that??? Big thanks in advance:)

Just load all 3 tracks in Ableton and align them properly in arrangement view?

I done as per your suggestion but it still not works. load 3 music properly align makes trouble. please help.



Thanks



Kinerase