I can't connect anymore

. OS version? Mac 10.4.7
2. What firewalls you have? Mac Firewall
3. How much ram? 1Gb
4. Hard Disk space available? 130GB or more
5. Connection type? (eg: dialup, broadband, cable, etc.) DSL
6. Modem & router brand name & model numbers? Iconnect access 621
7. Where are you trying to connect from (home, school, work, etc.)? Home
8. What version of Limewire (LW) & Java do you have? (Go to LW's menu Help>About LW...) Will show both LW & Java version. 4.12.4
9. Who is your isp provider (Internet Service Provider)? iinet Australia
10. Are you sharing the connection with other computers or p2p sharing programs? If yes, please give details of set up. No.
11. Is this a your 1st try at LW or is this a new problem with an experienced user. For about a month since I've installed LW everything worked well. Without a minor problem. But just today I can search but when I try to download it will not connect.
12. Do you see a brick wall in front of the blue world icon at the bottom of LW's interface? Yes
13. 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? I've got message Your test worked