JProfiler6 monitor tomcat6.0 for memory leak

Hello,
I am tring to work out the memory leak of my Web Application running on the local server. I have been told that jprofiler is a good tool for monitoring memory. I have dowloaded jprofiler6, but I dont know how to config the setting.

what i have done is:
1.from the Quickstart window->An application server, locally or remotely
2.follow the wizard step by step
1)choose application server Apache Tomcat 6.x
2)application is located "on this computer"
3) Chose JVM vendor
4) wait for a connection from the JProfiler GUI
5) Locate the start script :C:\Program Files\Apache Software Foundation\apache-tomcat-6.0.20\bin\startup.bat
6) port:8849
7)finished

After i done these, a error message came out said:
"Could not connect ot 127.0.0.1:8849.Please make sure that the remote address is correct, the remote program is started properly and the netword route allows socket connections."

can anyone help me? it's urgenttttt. Thank you very much