Adobe ACROBAT READER 7.0 Manual page 41

Navigating with reviewer comments
To view a list of comments in a PDF document, click the Comments tab on the left side of
the document window. To browse through the comments, click a comment in the list, or
click the Next button or the Previous button to go to the next or previous
comment. (These buttons are unavailable if no comment is selected.) The page on which
the selected comment is located appears in the document pane, and the selected comment
scrolls into view. To go to the page where another comment is located, simply click the
comment in the list.