The reason why it only shows ps1.4 and vs1.1 is that tool used the 6.22 engine which is DX8. Those are the highest shader versions supported under DX8, so thats all it will report. I could post the source if someone wants to redo it for DX9. It wouldnt be hard, I just dont have the time.

Besides, there is already a shader version variable in the newer engine, so you could just look at that if you want to be sure.