I have done all the things you said:
I've got the newest jre-1.3.1_01 and I changed the LimeWire.lax file.
now I have a new problem: when I type ./LimeWire17 there comes the following message:
computer:~/LimeWire17 > ./LimeWire17
SIGSEGV 11* segmentation violation

Full thread dump:
Monitor Cache Dump:
Registered Monitor Dump:
Name and type hash table lock: <unowned>
String intern lock: <unowned>
JNI pinning lock: <unowned>
JNI global reference lock: <unowned>
BinClass lock: <unowned>
Class loading lock: <unowned>
Java stack lock: <unowned>
Code rewrite lock: <unowned>
Heap lock: <unowned>
Has finalization queue lock: <unowned>
Finalize me queue lock: <unowned>
Dynamic loading lock: <unowned>
Monitor IO lock: <unowned>
Child death monitor: <unowned>
Event monitor: <unowned>
I/O monitor: <unowned>
Alarm monitor: <unowned>
Monitor registry: <unowned>
Thread Alarm Q:
./LimeWire17: line 1: 5979 Abgebrochen "/usr/lib/jdk1.1.8/bin/jre" -mx100000000 -ms20000000 -cp "/home/zimon/LimeWire17/./collections.jar:/home/zimon/LimeWire17/./LimeWire.jar:/usr/java/jre1.3.1_01/lib/rt.jar:/home/zimon/LimeWire17/./lax.jar" com.zerog.lax.LAX "/home/zimon/LimeWire17/./LimeWire17.lax" /tmp/env.properties.5934

then there is the prompt again. what else is to do to make the programm running?
thanks