Another will not connect thread with a twist!

[frtend]

I'm here because the newly purchased Limewire 4.9 my wife bought will not connect. First,the needed system answers:
1)OS is Win XP pro w/S2
2)Windows firewall
3)2 GB ram
4)free space: C:77.1GB,D:97.5GB,E:261GB - One 500GB hardrive split up
5)cable
6)Modem: Arris model TM502G, Router: Netgear model WPN824 v2
7)home
8)Limewire: 4.9.37 Java: i.6.0_03
9)Insight
10)my test worked
11)yes. another desktop,both using LAN from router,always on. 2 laptops using wireless from router. using Limewire on other desktop...program details below.
12)Been using Limewire for few years.Experienced with using program,but not with all the port setup stuff....I know enough to get myself in trouble!
13)yes
14)UPnP enabled....aparently....see below
15)Avast
16)USA

Now the twist.As mentioned above,I am using Limewire on my other desktop...and it works...turbo connected and all. Why did my wife buy the upgrade? No idea except that this PC is new and she didn't wait until I got all the stuff loaded onto it! If I can't get it to work,someone is going to be giving her a refund!
Details of the other desktop are the same except the following: ram is only 1GB(I think),free space is 21GB,Limewire version 4.12.11(Java is the same).No brickwall in front of the world. Connection, ISP, router, modem....all the same.
I have tried replacing the Gnutella file. I have tried removing the preferences file.I have tried uninstall/reinstall Java.I have uninstalled and reinstalled the whole program.I have tried using the same advanced(firewall/proxy) setting as the 4.12 .
I'm done now. I would prefer to have the upgrade working,but as I said, If I can't it will go bye bye. 4.9 has been attempting to connect for 35 minutes now and no connection(yes I have tried restarting....many times!!). Any suggestions? Thanks in advance for any help!