If you get blank windows in LimeWire, then change skins. This has been a common problem with the newer versions of LW for OS 10.2
The problem is Java related. Unfortunately users of OS 10.2 Jaguar are stuck with the 1.4.1 version of Java that is compatible with it.
Mac OS 10.2 Jaguar issues with LimeWire
Go to menu bar, Change skin. Example in image below.