I need help..... error message on startup .. 'invalid themes'

I uninstall limewire because it was giving me this error message, I dont know how to get it off of my screen, if anybody can help please reply...

LimeWire version 4.18.2
Java version 1.6.0_03 from Sun Microsystems Inc.
Windows XP v. 5.1 on x86
Free/total memory: 31333560/33357824
com.limegroup.gnutella.gui.GUILoader$StartupFailed Exception: invalid themes.jar
at com.limegroup.gnutella.gui.GUILoader.sanityCheck(G UILoader.java:275)
at com.limegroup.gnutella.gui.GUILoader.load(GUILoade r.java:58)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknow n Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Un known Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.limegroup.gnutella.gui.Main.main(Main.java:45)
STARTUP ERROR!

1. Try deleting your LW Preferences folder whilst LW is closed; instructions here: Point #2 & 3 in Fixes for Limewire (sample image included at bottom of page.)

2. Use your Add/Remove Control panel & remove ALL Java versions on your computer.

3. Run this utility: Crap Cleaner

4. Install only the OFFLINE version of Java Download Java software from Sun Microsystems

5. Install this version of LW: http://www9.limewire.com/download/LimeWireWin-full.exe