Try Jabo's Dircet3D6 1.5.1 or Rice's Video 6.0.0 and it should work. I'm preety sure that plugins show that correctly. If they don't on you PC you GFX card is too bad for it.
Your Rage Pro is completely insufficient. All ATi hardware of that time supported about as many blend modes as you have fingers.. on one hand. Nothing you can do but get a better card (GeForce2 or higher should be fine for this task, and a helluva lot better than a Rage Pro).
You could try Glide64+Evoodoo (hacktarux's wrapper has no chance on that card). Search the forums to find out what I'm referring to.. I'm lazy.