Limewire opens fine, but whenever i try to search it just says it is not connected to the network.

I know its not a very original post lol, but really having difficulty. I'm normal quite computer articulate, but this has really stumped me. I had to same problem about a month ago but followed advise on here and it worked.. now it doesn't!

1. what OS version? (eg: Windows 98, XP,OSX, Vista) WINDOWS XP
2. What firewalls you have ? Just the windows one, but Limewire is in exceptions
3. How much ram ? Really not sure
4. Hard Disk space available ? Really not sure (but i have additional space)
5. Connection type (eg: dialup, broadband, cable, etc.) ? Broadband
6. Modem & router brand name & model numbers ? I don't know.
7. Where are you trying to connect from (house, appartment complex, school, student accomodation, work, etc.) ? House
8. What version,LimeWire & Java,Go to L/W's Help/About L/W, THIS show both LW & Java version.? Newest versions.
9. Who is your ISP provider (Internet Service Provider) ? Virgin
10. Do this test click here: http://www3.limewire.com:6346/ should say 'Your test worked!. What happens ? It says it worked
11. Are you sharing the connection with other computers or p2p sharing programs? If yes, please give details of set up. Not sure what this means!
12. Is this a your 1st try at LW or is this a new problem with an experienced user.? had this problem before, last time i used limewire (about a month ago) but i opened a port and it worked. Now it doesn't and the fix doesn't work either!
13. Do you see a brick wall in front of the blue world icon at the bottom of LW's interface ? yes, but it limewire is an exception for it.
14. Have you given full permisions for LimeWire to pass through your Firewall ? I believe so!
15. XP users, Please state XP firewall on or off.? ON