- Browse to C:/Program Files/Steam/steamapps//team fortress 2/tf/materials/VGUI/logos/
Note: is whatever your steam login is. If you can't find the folders 'VGUI' or 'logos' in the 'materials' folder, simply create them. Make sure the 'logos' folder is inside the 'VGUI' folder.
- Put the .vtf file for the spray into the folder. That's it.