As said million times, maximum usable space of HD is 4GB with the original scsi.device and FFS of the OS/KS 3.1. Maximum partition size is 2GB. You can make bigger partitions or use more space from the HD, but then you blow your system sooner or later when you write stuff over those limits.
So, if you don't update your system correctly, keep them all under those limits!
As for "Jesus On E's" it's the crappiest and overestimated demo ever.. I wouldn't bother to find out if it works or not
Check some cool demos from
http://ada.untergrund.net/ instead
Maybe "State of the Art" if you like that kind of music video demos
