Moving servers is really not that difficult a task.
It does depend on what database you are using and you have not said if you are on ctree, old btrieve, pervasive or SQL server and I don't want to describe all these so in short it is a simple process of installing that database software e.g. installing MS SQL. Copying the data to the new server and then pointing all the workstations to the new server. It is a good idea to shut off the old server just to be sure that no one is still looking at it.