Unfortunately your server is currently in an inoperable state. At this point we can offer you a couple of options.
If you would like, we can bring your server up on a linux live disc which would allow you read/write access to all of your partitions. Using this you will be able to back up all of your data as well as make repair attempts on your system.
In the event that you are unable to repair your server, the only course of action will be to order an os reload. This process will return your server to a production ready state. It will also, however, destroy all data on the machine, so in the event you are unable to backup your data, you will also want to consider slaving your master drive to a new drive that we will install to reload.
Please let us know how you would like for us to proceed.