From time to time we will revise our pre-built operating system images; if your VPS was created before the time the change was made your VPS will not include it.
Most of these changes are both minor and optional - there is no specific need to apply these changes to your VPS.
We have taken the opportunity with the release of Ubuntu 10.04 to enhance its default image to include a few more common utilities corresponding to:
apt-get install wget man time file ca-certificates ntp
Other operating systems will be updated to include these packages in their next revision.