2. Windows XP has it's own firewall, so you need to make sure that you're not running 2 firewalls at once (they'll conflict with each other). If you're using a firewall provided by your ISP, make sure that the XP firewall is turned off. Also make sure that your other firewall is set to allow LW. Do you know the name of the firewall?

6. The devices that let you connect to the net. Look for a box with lights on it. You might have a separate modem & router or they might be all in one. Or you might just have a modem. Your modem/router might be connected to your computer by a cable or if you use a wireless connection, it could be in another room. If you can't see a brand or model, have a look underneath If you share the house, ask someone else & they might be able to help you.

8. Open LW, click on Help > click on About LimeWire... you'll see your Java version there.

9. Which company do you pay for your internet access (eg Telus, Cogeco, Shaw etc)?

14. In LW go tools > options > advanced > firewall. Do you have a button checked for 'manual port forward' there? If so, what port number is listed there? Or do you have the 'use UPnP' button checked? Or neither?
On that same page you'll see a 'listening port' box - what port number's in the box?

Which fixes did you try from the link in post #2? Were there any that you had trouble with, or didn't feel confident to try?