>I recently changed a page to use an image instead of a submit button. Before, I was able to tab, tab, tab and space over the submit button to submit the form. Now, I have an image and the space over the image scroll down the page. How can I define the image to submit the form when I hit space when the focus is over it?

You could probably include a hidden submit type button and call it's Click() event from this image's onClick(). The following is untested VBScript code:

Sub myImg_onClick()
  mySubmit.Click()
End Sub

HTH