How to get a screen snapshot of a long window on a Macintosh (OSX 10.4)?

This is not specifically a Drupal question, but I assume that other people writing documentation for their new sites must have hit the same problem. I found various tools that hit part of the problem but not one that does exactly what I need. I am on a Macintosh running OSX 10.4

What I need is a way to take a snapshot of a complete window. Not just the part that is currently visible. Some windows that I want to take snapshots of are long and are part of a chain of windows that must be accessed sequentially. Because of the sequence requirement (data is entered in one window to access the next), I need to capture the display from the browser itself.

Tools I've found, and why they don't meet my needs. (They are good tools, just not doing what I need)

SnapZ Pro X - takes great movies, sections of a screen, whole screens, the visible portion of a window. But can't get the part of window that is currently not visible. If you have to scroll to get to it, its not captured.

Built-in screen capture - great for capturing screens(or portions) but not complete long windows

Paparazzi! 0.43 - This can capture a full long window even if the full content is not currently visible ... BUT it doesn't take the display from the browser, it must be given a parameter of the URL that you want to get. It then gets the entire page itself and creates the snapshot. This works great for my first window in the sequence, but can not be used to handle the second(and beyond) since there is no method to enter data from the user.

If anyone knows how to get the full long windows like Paparazzi does but from the browser window so I can get a sequence of windows that require input. I'd love to hear your suggestions. If not I hope this info helps someone else,