Thanks for the compliment.. If is a compliment.
Well.. I don't know if I can answer to all of that, but I'll try. I'm sure that I don't know the meaning of most of those stuff.. o.O

1. OS version? Macintosh HD
2. What firewalls you have? Don't know.
3. How much ram? Don't know.
4. Hard Disk space available? 37,33 GB
5. Connection type? Modem
6. Modem & router brand name & model numbers? Don't know.
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? LimeWire Basic 4.12.11
9. Who is your ISP provider (Internet Service Provider)? Don't know.
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? '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? It's my 1st try at LM.
13. Do you see a brick wall in front of the blue world icon at the bottom of LW's interface? Yes.
14. For those using a modem/router, how is your modem/router set up...are you port forwarding or is UPnP enabled? Don't know.

Sorry but I can't answer to the other questions.
And, thanks again.