Hi datul,
I don't have a version as old as you, oldest I have is 4.8.1
My 4.8.1 still works (with Java 6), but honestly...I wouldn't use it , unless it was as a test for someone. You might want to look at the LW changelog...then you'll be able to see exactly what changes have been made since 4.0.7.
http://www.limewire.com/english/cont..._history.shtml

There have been some huge improvements since way back then & LW is so much better now. You don't have to get rid of your 4.0.7 installer if you love it, but do consider the newer versions...they're great

Sorry for jumping in Mick, hope you don't mind