Problems taking photos at night.

Did you use flash? Did you use tripod? Generally speaking night photos with non-DSLR digital camera, W55 is non-DSLR, will be blurry unless either flash is used or a tripod is used. The issue is the camera shutter is set for a long exposure in order to get enough light that it is impossible to hold the camera steady. The color problem you mentioned is most likely your white balance. Normal white balance is sunlight at night you white balance should be Auto, Incandescent or Neon