Hi
edit your autoexec.bat file in c:
set TOMCAT_HOME=c:\tomcat (set path of tomcat home directory)
set JAVA_HOME=c:/jdk1.2 (set path of java home directory)
set CLASSPATH=c:\tomcat\lib\ant.jar;c:\tomcat\lib\jasper.jar;c:\tomcat\lib\jaxp.jar;c:\tomcat\lib\parser.jar;c:\tomcat\lib\servlet.jar;c:\tomcat\lib\webserver.jar (Set your class path like this)
save the bat file
to start the tomcat
go to tomcat home directory bin then run startup.bat file (c:\tomcat\bin\startup.bat)
sekhar