Tutorial from Bonfi96 from the Maniaplanet forums
On this tutorial, Gimp is used to edit an emblem. You can download it on gimp.org, it's free.
The template to create an emblem for the Shootmania shield is available here.
Open the template, select the "Team image" layer and place the picture your want here.
In gimp, DDS is not avaiable directly, you have to install the GIMP-DDS plugin in GIMP. It's only a matter of copying one file.
How to correctly save the file to have the image visible ingame (save it with the
To display your emblem in ShootMania, read this thread