There is no information on the tab as to how the rhythm and tempo goes. When using this kind of tab you have to listen to the song to get this correct. The numbers you refer to is indeed the chords and how to play them but I think there is a notation error on the Bm7. Normally Bm7 is x24232. The second chord is not a Cm7 but C#m7. It is two different chords a half step (one fret) apart. So the notation on this chord i correct.
/Tom Jensen
