I can't connect!

Someone please help figure out to connect! I've tried everything the "support" had to say regarding the whole IP address thing with the ports. But I still can't connect. I noticed that when I downloaded "Limewire" that it said it was going to install some Java thing. But I don't think it did. What "java" do I need? Where do I get it? Is that all I need? As you can't see I very fusterated with this Limewire and I'm begining to wish I hadn't bought It. Has anybody else had the same problem as me?

If I'm to far gone, tell me how to get a refund. It said there is a 30 day period where refunds are granted. I would really appreciate someones help.