you could try the linux installer script on the jdownloader site (direct link) let me know if that works for you.


From the script:

#JD Installer/Starter Version 0.2
#by Jiaz(JD-Team), jiaz at jdownloader.org
#You need at least:
#1.) bash (its a bash script )
#2.) wget
#3.) Java Version >= 1.5 (OpenJDK works also in latest Version)

#How to use this?
#1.) chmod +x jd.sh
#2.) Place it anywhere you want
#3.) Running jd.sh for the first time will install and setup JD into JDDIR folder
#4.) Running jd.sh after the first time will start JDownloader directly