This might not work,if there is something wrong with the items in Recovery.But it's worth a try.Try booting into safe mode,then trying to recover the Jdownloader entries from quarantine.
These are instructions on safe mode,in case you need them:
http://www.bleepingcomputer.com/tuto...-in-safe-mode/
If that doesn't work,the other options are to go to the quarantine folder and try to recover from there.The difficulties with that are that Quarantined items are password protected,you'd have to extract the Jdownloader.zip,and you'd have to look off your Spybot logfile to see where each item should go.
Or,an easier option might be just to reinstall Jdownloader,so that whatever Spybot removed should be replaced if you reinstall,barring unforseen difficulties.I'm not familiar with Jdownloader.