Need help for with determining Stride, NumVertices, and PrimCount

I have an injectable dll that I can use to manually scan for strides, numvert, primcount, etc, (from another site) and it highlights the texture that I have selected. Basically, I want to make a simple wallhack in D3D9 for CS:S. I have narrowed down the Stride to 32, but whenever i try a different NumVertices value (like the one for the CT model) I will look in certain directions and all the textures will disappear. Plus, I cant even see the textures through the walls all the time. I need some help with determining those 3 values needed. Im using the TatD3D base (the one in the D3D starterkit).

only thing on the top of my head is to debug and breakpoint / hook all d3d calls and check the parameters passed.. idk, ive never used d3d, so i dont know if they even pass those things as parameters