Yeah! Like I said you can add that file to your comp and mask it into any shape (rectangle) I would also put a very small drop shadow to add some depth and to bring it to life. Also if you’re looking for some royal free textures Andrew Kramer (videocopilot.com) has an awesome dvd called Riot Gear his textures are more realistic and his paper textures are brilliant.
I guess I’m confused, that file is considered a texture. Where or what are you trying to place this effect to? If you add it as a file you may mask it around an area and drop the opacity to achieve a textured affect.