^^^^^^^^^^^^^^^^^^^^^^
Disable Windows Firewall... it sucks.
Disable Windows Firewall in Windows XP SP2
Note A firewall is designed to help protect your computer from attack by malicious users or by malicious software. Malicious software includes viruses that use unsolicited incoming network traffic to attack your computer. Before you disable your firewall, you must disconnect your computer from all networks, including the Internet. To do this, follow these steps:
1. Click Start, click Run, type Firewall.cpl, and then click OK.
2. On the General tab, click Off (not recommended), and then click OK.
Disable Internet Connection Firewall in Windows XP or Windows XP SP1
Note A firewall is designed to help protect your computer from attack by malicious users or by malicious software. Malicious software includes viruses that use unsolicited incoming network traffic to attack your computer. Before you disable your firewall, you must disconnect your computer from all networks, including the Internet. To do this, follow these steps:
1. In Control Panel, double-click Networking and Internet Connections, and then click Network Connections.
2. Right-click the connection on which you want to disable ICF, and then click Properties.
3. On the Advanced tab, click to clear the Protect my computer or network check box.
If u didn't get it.. here's the method with pics...
Another one
Comodo firewall link