Okay, since you're using an older version of Java (the newest is 1.5.0_07), I'd reckon first to uninstall your Java, download the newest version (use the JRE offline installer) and install that.
http://java.sun.com/j2se/1.5.0/download.jsp

Since you do not know about your modem/ router or whatever you use, where do you plug in the jack of the phoneline?? At the back of your computer or is there some box outside the computer?
Do you have any AOL security software installed ( or any other Antivirus/ AntiSpyware program)??

An advice in regard to your graphic card, try to update the driver. Or try setting your graphic card settings back to default. Some had an issue with 3D settings for games. And others had an issue with graphic card driver updates that had problems.
http://www.gnutellaforums.com/showth...hlight=G-FORCE

You're using the LW 4.10.9 Pro, are you still in the 6 month period for free updates or have 6 months already passed since you bought LW. I assume you bought it from the official LW website?!?
http://www.limewire.com/

As for the question where the firewall comes from:
The AOL® Safety and Security Center helps protect you with the most comprehensive set of safety tools, all located in one place and included with AOL at no extra charge. Best of all, we keep them updated so you don't have to. The AOL Safety and Security Center helps make staying protected online just about effortless. It includes:

* Automatic protection from known phishing sites when you sign on with your screen name to the AOL® service or the AOL® Explorer browser
* New and improved spyware protection, more powerful and faster than ever
* Always-on, always up-to-date virus protection that guards your whole computer, not just e-mail
* A security barrier between your computer and the Internet with AOL® Firewall
http://daol.aol.com/safetycenter

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"Never Argue With An Idiot. They Will Drag You Down To Their Level, Then Beat You With Experience"