I have the same problem with 2.7 and the java error. I was actually going to purchase the PRO version, but now that I see that doesn't work either I'm not going to.

I had to go back and re-install 2.6 to get it to work again.

Too bad. Limewire is missing out on money from Mac users. No one is going to pay $10 for something that won't even install.

-Paul