ps1 model ripping for newbies

[Crimson Blade]

I actually do have 2 questions when it comes to PS1 ripping. Eutechnyx games, such as C3 Racing/Max Power Racing or any other game made my them, always come out looking like this when using Duckstation (if you look at the image). How do I solve this? Will that Blender plugin sort that mess? Here's the example since no one gave me an answer for it:



And Vanishing Point for the PS1 has confusing car textures, they're all over the place and they're hard to figure out which is the right one when ripping them.