soft4you

Hi, I am testing with Virtualbox v1.64 and I wanted to install a virtual machine using Dell Windows XP Pro OEM original CD. After installation I get the message "30 days left for activation". My physical PC is Compaq Presario running XP Pro SP3. I downloaded OEMBIOS and from inside the virtual machine it reports it found Gateway BIOS and replaces the oembios files that I downloaded from oembios.net. I tried the 2 Gateway sets available over there. I also forced copy of Compaq files. I am newbie so I must be doing something wrong. Do I still need to make more changes like creating new installation CD or getting special key? TIA for your help.