I have just installed Limewire Basic 4.8.1

I can't connect at all. I have tried deleting Preference folder, disabling firewalls.

Going here http://www3.limewire.com:6346/
gives me 504 Gateway Timeout

My specs
1. Win XP SP1
2. Zonealarm (disabling it makes no difference)
3. 768MB RAM, 60GB HDD free
5. T1/LAN
6. Using a Realtek RTL8139, with SMC7004ABR Router
7. Home

My browser uses "Automatic Configruation Script"
I tried typing that proxy into Limewire (HTTP) and when I try to connect, it gives
"Your machine does not appear to have an active Internet connection or a firewall is blocking etc..."

If I don't use the proxy, the same error comes out, except that it will remain in "Connecting" mode for about 30seconds then give that error instead of giving the error immediately.

Can hanyone help me please?