I think you need to provide more detail about what you're trying to do. E.g., what is a "remote applet"? Applets are hosted on a remote server, and then the browser downloads them to the local machine. Where do you see RMI fit in with this scenario? Are you trying to access the remote machine through RMI? While that's a possibility, using HTTP may be simpler.
Links to articles describing both approaches can be found on the
Applets FAQ.