I'm happy to say that the installation of a 64 GByte SSD ($73 at crucial.com on sale, $10 off) has been successful. I used an external USB HD that I had lying around to do a backup, and the installation recovered most of my User files - the only thing I found missing was my e-mail settings, and I don't store my e-mail on the NB, since it is not my main computer.
I did have to buy, as far as I could tell, the Toshiba recovery thumb drive for $40:
SW Media - USB-MINI NOTEBOOK-NB205-Windows 7 32bit Starter-EN for mini notebook
in order to re-install Windows 7 Starter. Maybe someone can post with a work-around for that. I tried to make a bootable thumb drive, but that didn't seem to work. I would guess that the difficulty is the way Microsoft prevents pirating their OS.
The one mistake I made, was that the backup to a disk image didn't work for me, because a disk image has to be restored to an identical, or maybe a larger, disk, and I went from a 160 GByte HD down to a 64 GByte SSD.
One other attempt can be made to restore added software and the updates would be to re-install the HD and do a different backup from which I could restore the rest of the stuff.