Please note that directly upgrading from 3.0 to 3.3. is not possible. Currently, it is only possible to upgrade from version 3.2 to 3.3. So, in this case, the best course of action would be to install a new server with SPS 3.3 version by following these steps:

1. Prepare a new machine.
2. Install the SPS 3.3 version.
3. Shutdown the old SPS 3.0.
4. Change the IP/Hostname of the SPS 3.3 to the IP/Hostname of the SPS 3.0.

Note: Optionally, instead of changing the IP/Hostname of the SPS 3.3, you can set all of your SPS dependent products to use the new IP/Hostname of your SPS 3.3.

If you are using SPS 3.0 and you need to keep the settings when moving to SPS 3.3, you can follow these steps:

1. Upgrade SPS 3.0 to 3.1.
2. Deploy a clean installation of SPS 3.3 in a separate server following the steps described above.
3. Follow the SPS 3.3 Installation Guide (pages 39 to 44 "Migration Settings") to migrate the settings from SPS 3.1 to SPS 3.3.