To read the value, use the following code (and in this sample, display it in a dialog box):
watch.showmessage watch.getjobInfo(8)
Remember: when setting a variable with VBScript, you are using a procedure which doesn't return a value. Therefore, you can't use parentheses around the parameters.
But when you're reading the value, you're using a function that is expected to return a value, which is why you must use parentheses around the parameter. It's one of those VB peculiarities we've all learned to love...
Hope that helps,