John:

I've remade the tspir1.vert.dat ascii file as follows:

frame 1: tn  at 50->150 km (every 2 km)
frame 2: co2 at 50->150 km (every 2 km) (cm-3)
frame 3: o1  at 50->150 km (every 2 km) (cm-3)

frame 4: tn  at 150->300 km (every 10 km)
frame 5: co2 at 150->300 km (every 10 km) (cm-3)
frame 6: o1  at 150->300 km (every 10 km) (cm-3)

frame 7: co2 at 50->150 km (every 2 km) (cm-3 mixing ratios)
frame 8: o1  at 50->150 km (every 2 km) (cm-3 mixing ratios)

frame 9: co2 at 150->300 km (every 10 km) (cm-3 mixing ratios)
frame 10: o1 at 150->300 km (every 10 km) (cm-3 mixing ratios)

(New file is in same place with same name).
Hope this works for you...

--Ben