On your MY COMPUTERS page, go to the computer you want to make a Desktop Shortcut for, then click the EDIT button to the right of it. It will take you to a new page "Edit Computer". On that page, there is the link in the shaded area under "Edit Computer".
Also, I just found clicking the LABS page, it will let you set up an RSS for all your computers, which is basically a shortcut for all your computers, in one place without having to log onto LogMeIn. I have found this very useful, it is on my homepage when I first open my browser.
Just an idea and suggestion for anyone else that has not seen this yet.