What size are those textures? They should be sizes a power of 2. 256x256 or 512x512 for example. Other than that, there's a line in the shader which takes care of tiling. It's all commented in the shader code itself.

Code:

---

	                Out.Tex1  = inTexCoord0.xy;		// rgb-blendmap (not tiled)
			Out.Tex2  = inTexCoord0.xy;		// shadowmap    (not tiled)
			Out.Tex3  = inTexCoord0.xy*10;	// tiling texture red30
			Out.Tex4  = inTexCoord0.xy*30;	// tiling texture green10
			Out.Tex5  = inTexCoord0.xy*20;	// tiling texture blue10
			Out.Tex6  = inTexCoord0.xy*30;	// tiling texture black30

---

Change for example the *30 into *20 to get a different tiling result for texture6(which is actually texture 4 off course),

Cheers