I have had Limewire for a good while now.. I could download files extremely fast, but recently I have only been able to get 0-2KB/s.. If anyone could help, it will be greatly appreciated!!

Computer - Sony VAIO 2.80 GHz
Operating System- Windows XP
HDD- 50 GB
RAM- 448 MB
Firewall - Zone Alarm
Limewire Version- 4.8.1
Java Version- 1.5.0_01
Modem Type- Realteck RTL8139/810x Family Fast Ethernet NIC
Router- ???
Connection- DSL
Location- Home
ISP- AOL