1. Activate it as a DNS domain and use a real heberger! You won't have ....tk as title!
2. Use <link rel=... for your favicon! You'll lose the old .tk icon!
And you need to forward the port on your router from 80 to 37 for exemple if you ISP is blocking ports (Telus, >:( ). In DynDNS, simply replace your IP by your IP:PORT. To edit your router parameters, go to 192.168.0.1 or click Start > Run > ipconfig.exe, get your IP address and replace three last digits by 001.