Reply to Midi Fighter+VCI100se setup on Traktor 126

Hi,
finally I got the Midi Fighter (3/500).
I didn't understand how to keep together the tsi file of Vci and the tsi of MF.
Only VCI or MF one by one go right with its own tsi. The other interface doesn't respond to commands, but traktor shows anyway a midi activity
Is somewhere a 3d about it? I didn't found it.

Another little question: with tsi 1.1 using MF remains steady on the led signed by "x":
oooo
oooo
ooxo
oooo
Is it a normal status or is it a problem?

My VCI tsi is 2.5 version.
Thanks a lot for help.