Upgraded limewire wont work now.
 

I upgraded from Limewire 4.12 to 4.18 now when you click to open you get the following message. I have tried installing again to no success. Can you help.
LimeWire version 4.12.11
Java version 1.5.0_06 from Sun Microsystems Inc.
Windows XP v. 5.1 on x86
Free/total memory: 31468264/33357824
com.limegroup.gnutella.gui.GUILoader$StartupFailed Exception: invalid update.ver
at com.limegroup.gnutella.gui.GUILoader.sanityCheck(G UILoader.java:278)
at com.limegroup.gnutella.gui.GUILoader.load(GUILoade r.java:48)
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!
-- listing properties --
WINDOW_Y=0
WINDOW_X=0
PORT=3698
TOTAL_CONNECTION_TIME=453439458
LAST_FWT_STATE=true
UPDATE_DELAY=25200001
UPDATE_GIVEUP_FACTOR=49
FILTER_HASH_QUERIES=true
INSTALLED=true
UI_LIBRARY_TREE_DIVIDER_LOCATION=130
AVERAGE_UPTIME=256542
TOTAL_UPTIME=2308886
MAX_UPLOAD_BYTES_PER_SEC=14
MIN_CONNECT_TIME=4
CONTENT_AUTHORITIES=fserv1.limewire.com:10000
COUNTRY=US
LAST_SHUTDOWN_TIME=1189327844250
APP_WIDTH=1280
SESSIONS=10
SHOW_TOTD=false
NECTIONS=2
SEARCH_WARNING=Only search results with a {0} are of...
LAST_ACCEPTABLE_BUG_VERSION=4.13.14
FRACTIONAL_UPTIME=0.04807711
UPDATE_RETRY_DELAY=1800001
CONNECTION_SPEED=350
LAST_EXPIRE_TIME=1188972720468
TOTAL_CONNECTIONS=54
DIRECTORY_FOR_SAVING_FILES=C:\Documents and Settings\Compaq_Owne...
MAX_DOWNLOAD_BYTES_PER_SEC=51
UPDATE_DOWNLOAD_DELAY=7200001
RUN_ONCE=true
AVERAGE_CONNECTION_TIME=8397027
CRAWLER_IPS=76.8.67.2;76.8.67.4;64.61.25.172;64.1. ..
APP_HEIGHT=994
EVIL_HOSTS=BearShare 5.2
DAAP_ENABLED=false
MAX_SIM_DOWNLOAD=8
DIRECTORIES_TO_SEARCH_FOR_FILES=C:\Documents and Settings\Compaq_Owne...
UNSET_FIREWALLED_FROM_CONNECTBACK=true
CLIENT_ID=0395F85E7123B124FB18158BB592F900
FLUSH_DELAY_TIME=25
CONTENT_MANAGEMENT_ACTIVE=true
IDLE_CONNECTIONS=2

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.)

Remove all versions of Java & downgrade to Java 1.5_10 Archive: Download Java 2 Platform Standard Edition (J2SE) 5.0 Update 10.