Hi,
I've rescanned the file and it is fine. Some antivirus progs go barmy if they see a file with .exe on the end and issue dire warnings. I've uploaded the file again to
http://ge.tt/5MjcmFM/v/0?c. This time I've not zipped it. I've downloaded it to the hard drive then transferred it to a flash drive. If you have any concerns try downloading the file to your hard drive then copy it to a flash drive. You can then run it from the flash drive. I've tried it on three computers and it works fine. When you've made a successful download we'll start Photoshop lessons on a different thread.
I don't think GIMP has a lassoo tool which is essential. Let me know how you get on.