Okay, this is what happens after I download the Limewire installer:

After launching the Limewire installer, the screen with the clock graphic comes up for a few seconds, and then this error message: "Unable to launch Java application. MRJ may not be installed correctly".
I have MRJ 2.2.5 installed.

I have tried re-installing it. I've tried different versions of the Limewire installer, but I can't even get past this point to even install it.

I tried starting up with extensions off, as suggested, and the same thing happened.

Thanks in advance...