I am on a shared host and whilst in development (umbraco) I think it would be easier to use VistaDB then package up to install to SQL Server. However, I have already started using SQL Server. Is there a way to migrate my SQL Server (2008) database to VistaDB. I assume the schema is identical but I need a way/tool to move the data to VistaDB.
You could migrate to VistaDB in the same way that you want to migrate data from development to production. Create a package from your current SQL Server-based development site, then create a new empty install of Umbraco with a VistaDB database and import the package there.
This would also be a useful dry run to check that migration to production is going to work as smoothly as you expect.