The recovery disk is not provided with this model because you have to create such a disk yourself using the pre-installed Toshiba Recovery disk creator. But I think not it's too late for this.
What you can try is to use the HDD recovery option. You can use it if you go in advanced boot menu (F8 after the Toshiba Logo is displayed
) and select "repair my computer". On the next screen you can choose the Toshiba HDD recovery option that wipes the first partition of your notebook and you get back the "factory settings". That means the preinstalled Vista from Toshiba with all drivers and tools. This will result in all your installed programs and data files being erased.
After this you can try to create the recovery disk using the Toshiba recovery disk creator.