Same scenario - I beat Space Station's Platinum Time and I have four MBP levels to beat their PT's; then I suddenly got a colored username. It's probably an overlook, but as long as you earned it, you should feel positive about yourself!
EDIT: check your profile on the MarbleBlast website to see you got your 'Colored' achievement.
Since the Awesome Time/Score is secret, you will have to beat it in order to find out what it is. Just practice every day, and be ready to keep pressing the 'Restart' button...A LOT!