Use the link Stief gave you & try out the magnet link. If you get faster speeds via downlding the magnet link then the issue could be with the sources you choose. Try to choose those that have multiple sources under the # column & 3 or 4 stars from the search results.

If you have configured your firewall ( http://www.limewire.com/english/content/firewalls.shtml ) & still getting a False bug test report for incoming then please supply the following information:
1. OS version? (eg: Windows 98)
2. What firewalls you have?
3. How much ram?
4. Hard Disk space available?
5. Connection type? (eg: dialup, broadband, cable, etc.)
6. Modem & router brand name & model numbers?
7. Where are you trying to connect from (home, school, work, etc.)?
8. What version of Limewire (LW) & Java do you have? (Go to LW's menu Help>About LW...) Will show both LW & Java version.
9. Who is your isp provider?
10. Is this a your 1st try at LW or is this a new problem with an experienced user.