I found this is the posts and it works:
doesn't seem that the limewire folks are reading this section of their boards, perhaps you can alert them.

for whatever reason, the version of limewire available from download.com today and limewire's own main download page (2.7 lime basic)

http://www.limewire.com/index.jsp/download#free

doesn't work. gets this error when attempting to launch:

java.lang.ClassNotFoundException: com.limegroup.gnutella.gui.Main
at com.zerog.lax.LAX.launch(Compiled Code)
at com.zerog.lax.LAX.main(Unknown Source)
at com.apple.mrj.JManager.JMStaticMethodDispatcher.ru n(JMAWTContextImpl.java)
at java.lang.Thread.run(Thread.java)

-however- THIS version does install and launch correctly:

http://allmacintosh.xs4all.nl/preview/248054.html

this is a .sit, the one with the error is a .bin.