You must read the disclaimer before downloading.
From the authors:
"Programmed by Inclusive Technology, a world leading developer of software for special needs, it uses the latest Macromedia Flash technology to deliver 132 high quality animated activities which can be operated by a wide range of input devices. SENSwitcher has been designed as a progressive teaching and assessment tool and is accompanied by an 18 page set of teachers notes together with assessment records, developmental skills progression models and small step checklists linked to the QCA P Levels for ICT. These documents are available FREE from the download area (of the Northern Grid web site)."
"The program is available FREE to teachers, parents, care workers, in fact anyone who wants to use it. We hope you and your children enjoy it."
This is a great, simple, program that you can get to run in any web-browser. It is excellent for children who can progress through the clearly defined levels.