How to make Grunge Text in Gimp

How to make a grunge text effect/background in Gimp. Just got back from DC, so if I sound tired, thats why.

Texture 1:
http://texturez.com/files/images/texturez_grunge_1174.preview.JPG

Texture 2:
http://img206.imageshack.us/img206/4743/grunge5bx3.jpg