GUITexture placement - Screen Resolution

I have two macro GUI textures that I want to be at the bottom middle of the screen and was wondering if there was a code I can place on them to change it to stay at the place I want regardless of the screen resolution? Thank you!

GUITextures use viewport space, which is normalized. So (0, 0)–the x and y position–is always the bottom-left and (1, 1) is always the top-right regardless of resolution.