dude,
   found a solution. work for tomcat6 . for those people that facing
similar
problem.  try download "javaservice.exe"  put it in {tomcat}\bin directory
and
install .javaservice.exe -install liferaytomcat
%JDK_HOME%\jre\bin\server\jvm.dll ..........
after that, if u trying to start tomcat and it give you error "loadlibrary
function failed......"
Solution: 
copy msvcr71.dll from {jdk1.6}\bin  to {tomcat}\bin     
tomcat6+jdk6 able to run as service on windows2003