Cannot down load

I had lime wire up and running no probs. Itred to take it out of the start up. Now its gone! Went to add remove and its not there! Tried to dowload again and I get this message

LimeWire version 4.16.6
Java version 1.6.0_05 from Sun Microsystems Inc.
Windows XP v. 5.1 on x86
[SIZE=3******/total memory: 32286648/33357824[/SIZE]

com.limegroup.gnutella.gui.GUILoader$StartupFailed Exception: .\lib\hashes (The system cannot find the file specified)
at com.limegroup.gnutella.gui.GUILoader.sanityCheck(G UILoader.java:286)
at com.limegroup.gnutella.gui.GUILoader.load(GUILoade r.java:57)
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:44)

STARTUP ERROR!

Help please