Mod Tutorial Question

Hello all, I'am new to the forums here and I'am wondering if someone could be kind enoug to point me to a MTW2 flag and banner tutorial, as I havent had any luck finding one.

I've done most of the steps already, have Python 2.5 installed, Texture-to-.DDS converter installed, .DDS to TGA converter, and already extracted, edited and saved a new .dds nation flag for use and ready for texturizing.

Thing is I'am not sure on the next steps, or on how to edit the battlefield banners.
Thanks for any input.