Using Texture Bases

I came across these two sets of icon texture bases (by sibelle_art) and after downloading them and attempting to use them, I realized that I didn't know how to use them correctly. I tried setting the blending mode to soft light, overlay, hard light, screen, etc, but it never looks right (I'm using PS7, by the way).

I was wondering if someone knew of or would be willing to create a tutorial on something like this as I'm absolutely dying to use these texture bases. Thank you!