Never heard of normal.tmp or colour files in X2, maybe somebody can enlighten me.
If you have tracks colours in X2 that would have been done with a third party util so don't expect that to play nice in X3 where it is built in.
If you are talking about transferring project templates across in Sonar, yes you could probably transfer this across but I would strongly recommend you create a brand new ones (just in case of issues later).
Cheers
Alex