You want to perform a daily full backup of your machine.
You want to move older backups to a remote location by using a script.
In this scenario, create a backup plan with a daily schedule. When creating the backup plan, specify MyMachine-[DATE] as the archive name, select the Name backup files using the archive name... check box, and select Full as the backup type.
Result:
The backups of January 1, 2011, January 2, 2011, and so on, are stored respectively as MyMachine-1.1.2011.tib, MyMachine-1.2.2011.tib, and so on.
Your script can move older backups based on the date stamp.