1. OS version? (eg: Windows 98) If using Windows Vista, please tell us whether you have an Administrator user account.

Windows Vista. I have the administrator account.

2. What firewalls you have?
Spyware and Trendmicro Antivirus

3. How much ram?

2038 mb
4. Hard Disk space available?

...unknown.
5. Connection type? (eg: dialup, broadband, cable, etc.)

DSL
6. Modem & router brand name & model numbers? (eg: Linksys WRT54Gv4)

modem- westell wirespeed.
Router - Buffalo high speed
7. Where are you trying to connect from (house, appartment complex, school, student accomodation, work, etc.)?

House.
8. What version of LimeWire (LW) & Java do you have? (Go to LW's menu Help bar > About LW...) Will show both LW & Java version. _ Click to see Sample image
*It's very important that you tell us whether you're using LW 5*

USing limewire 5.0.11
9. Who is your ISP (Internet Service Provider)?

Verizon.
10. Do this simple test for us. Using your browser go here: http://www3.limewire.com:6346/ The page should say 'Your test worked!'. What happens when you go there?

It says your test worked.
11. Are you sharing the connection with other computers or p2p sharing programs? If yes, please give details of set up.

no.
12. Is this a your 1st try at LW or is this a new problem with an experienced user

new problem with experienced user.
13. Do you see a brick wall in front of the blue world icon at the bottom of LW's interface? _ click here to see Sample image
If you're using LW5, there's no firewall icon. In LW go tools > advanced tools...there you'll see whether you're behind a firewall or not.

It says I am behind a firewall and do not support firewall transfers.
14. For those using a modem/router, how is your modem/router set up...are you port forwarding or is UPnP enabled?

upnp enabled.
15. What security programs are you using (antivirus etc)? Some people might not be aware that their security suite includes a firewall
antivirus and spyware.

16. What country are you living in? Sometimes there are ISPs with the same name in more than one country (eg Clearwire in the USA & also in Ireland).

United States.
17. Has anything in your setup changed recently? Have you updated your version of LW or Java? Have you added any new software or new hardware? Have you updated any software? Have you moved house, changed internet plan or ISP etc etc?

I updated my limewire.