I recommend Microsoft Security Essentials for real-time protection and SUPERAntiSpyware Portable Scanner for periodic scans and second opinions.
Upgrading GoDaddy Hosting to PHP 5.x from PHP 4.3.11
How to configure your GoDaddy linux hosting plan and .htaccess file to run your *.php pages on PHP 5.2.5.
Protecting multiple downloads using unique URLs
A PHP script for protecting multiple downloads by the use of unique URLs. The actual file on the server is not discoverable and each URL will only be valid for a certain time and number of uses.
Tips for improving the security of your home wireless network
Six settings on your wireless router or access point which, if properly configured, will better protect your network, your computers, and your data.