JApplet gets an exception when tries to invoke remote method

Question

yes, look at the screen shot here (Status bar in Iexplorer)
http://www.geocities.com/pyc_delf/exception.html
Can anyone help me out with this thing. I have an applet which retrieves some data from remote rmi server through RMI. somehow its not working when put on web-server, particularly in jakarta-tomcat. Does it have to do with server settings or with that whole java thing (rmi, applet security blah, blah, which i have little idea about) I suspect it has to do with registry, but cant figure out what exactly is happening. Both remote server and applet are on the same machine, i.e. localhost. jakarta provides it's services also in localhost but through port number 8080. it's just in case u might think the problem is in web-server.
Thank you
applet screenshot:
http://www.geocities.com/pyc_delf/

Answer 1

btw, it works perfectly fine when jakarta is not started, i.e. i can view applet in html file perfectly without going through web-server address. i.e. C:\..blah,blah\rating.html works perfectly. but "http://localhost:8080/myapp/rating.html" doesnt work! help!