Microsoft may not have enabled this by default because of potential hardware issues, but that doesn't make sense because the minimum video card requirements to even run Vista should handle the new bootscreen without any problem. In either case, here is how to make Vista look that much cooler with the "Aurora" bootscreen...
1. First start by running msconfig (either from the Run dialog or Start menu search box).
2. Click on the Boot tab, and then click the "No GUI boot" checkbox. Click OK.
