Yesterday i dowlaoded FrostWire. It just had starting connection so i uninstalled and installed it again. Then it works and i dowloaded lots :-).
Today it just has starting connection. The firewall logo is there.
Here is my details.

1. OS version? windows XP
2. What firewalls you have? possibly the windows one, no others.
3. How much ram? I don't know, but it worked once and i have not changed any software since then.
4. Hard Disk space available? 6.79 GB
5. Connection type? (eg: dialup, broadband, cable, etc.) Braodband ADSL
6. Modem & router brand name & model numbers? I connect access 621
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>About LW...) Will show both LW & Java version. I don't have limewire, how do i find JAVA?
9. Who is your ISP provider (Internet Service Provider)? Iprimus
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 works
11. Are you sharing the connection with other computers or p2p sharing programs? If yes, please give details of set up. The modem connects is connected to both computers. One ethernet, one USB.
12. Is this a your 1st try at LW or is this a new problem with an experienced user. I have used KAzaa and limewire and the both worked but they were really slow.
13. Do you see a brick wall in front of the blue world icon at the bottom of LW's interface? Yes.

I think i need to disablt the windows firewall, but i don't know how to find the settings, i don't know if my modem has any kind o firewall.

Sorry, i am not very good with computers. ;-)
Thankyou for your help.