I got the robot image from robo2000's card.bmp in the stepmania folder. To prove it, here's the image with the background from the card, and the image without the background:

As you can see, I did NOT rip the robot from your sig. Also, if you're wondering how I made the background:
- New Image (400x100)
- Fill with 0000DF, made white the background color on the color swatch thingy.
- Filter-Render-Lens Flare
- Filter-Sketch-Bas Relief (Default Settings)
- Filter-Blur-Radial blur (20 pixels zoom)
- Filter-Distort-Glass (0 distortion, 0 smoothness)
- Added a scanline effect to the background (Forgot the exact opacity)
- Removed the bg from the robo2000 card, flipped/enlarged it and then pasted it on my banner
- Added /rdx2k3 to the image in 8pt wst_engl font
So, as you see, I still made the image all myself.
About RoboDEX Productions: RoboDEX Productions is the "company" I release all my things under including music, graphics, websites and fiction. It originally came as a shortening of "A Robot named Dexter", a nonsense phrase I made up. My logos and promotional material usually involve robots in them, (for example this mIRC background I made for myself or my music promotion image,) and since DDRManiaX is a DDR-related forum I figured I'd use robo2000 in my sig. I didn't steal from Konaman, if anything I stole from Konami for making the original pictures.
More proof I couldn't have stolen from konaman: Compare the two images --
In my image, robo2000 is sharp, but in Konaman's image the robo2000 is blurry due to the high compression of the banner's file. If I had stolen from Konaman, my robo2000 would also be blurred, unless I somehow hacked into konaman's PC and stole the original source file (if any).