The long range exam had to be made in pre Jar ATPL times. With the introduction of JAR ATPL exams it has been abolished since the subjects previously asked in the long range exams are now part of the JAR exams.
So I guess you should be OK with a JAR ATPL, as long as you made your tests and your whole training according to JAR.
I'm not shure if it's really that way, it's been a while since I took my LR exams.
But you can ask the LBA (Luftfahrt Bundesamt = German Authorities) directly.
Phonenumber and E-Mail should be on their internet site:
www.lba.de (german)
http://www.lba.de/englisch/englisch.htm (english).
So long,
DBate