The original jokelben server is still down at this but not completely gone. The owner of the server has had issues with his hosting company over whether or not the concert recordings are copyrighted material. According to Sunlover who posts concert recordings over at BN, the owner of the server is in the process of relocating the server and establishing it at a more friendly location.
In the mean time Sunlover has created a second version of Jokelben known as Jokelben 2.0 which is hosted at the following link:
Jokelben 2.0 is not quite complete yet but has all of the concert recordings from 1974-2006 as well as the four show from April 2016
Hopefully the original jokelben will be back up soon so be patient and remember what Jimmy says "Pace Yourself, moderation is the Key"