By default the imaging agent uses internal images rather than the GIFs you’ve identified in the toolssautils folder.
As CG noted you’ll need to copy your image to the Toolssa folder not the toolssautils. Utils is for standalone – manufacturing style imaging. Save your image as 8bit 800×600 image named WISSplash.GIF adn copy to the ToolsSa folder and you should get the result you are looking for.
-k