Moving Around the Form
The gray tab strip at the top of the form lets you move to different sections within a given form. Clicking the Signatures tab, for example, will bring the signatures portion of the form into view.
The scroll bar to the right of each form is a great way to move up and down within the form. Either click the up or down arrows (to move a small amount at a time) or drag the bar in the middle until you have reached the section of the document you wish to work on.
Pressing TAB moves your cursor from field to field through the form. Pressing SHIFT+TAB moves your cursor from field to field in reverse.