Integration of Sparklines to Drupal + feature, module proposal

i am trying to incorparate Sparklines to Drupal -another fan of E. Tufte out there? :)

there is a PHP library for sparklines
http://www.sparkline.org/

'What Are Sparklines?
Sparklines are "intense, simple, wordlike graphics" so named by Edward Tufte. In lieu of a more detailed introduction, Professor Tufte's site has an early release of a chapter on sparklines.'

I vision there can be possible usage of this elagant feature for Drupal

possible internal usage
- Drupal's core and contrib module development process
- stocks.module
- stats
- showing image and media status integrated to each module (image.module, media.module)
- user activity stats
- and possible others

-external data stream usage
i guess any statistical info with xml can be integrated to Drupal site
try the sample on http://www.sparkline.org/ US deficit
which uses the xml output on;
- http://www.whitehouse.gov/omb/budget/fy2004/hist.html
or another usage integration here
http://www.wikispaces.org/ (showing Active Spaces on the block)

I am not a coder but i attempted to integrate and test the idea as below;

1- I have Downloaded the Sparklines PHP lib
http://sourceforge.net/project/showfiles.php?group_id=122936

2- Shortened the directory name to 'sparklines' to simply

3- upladed the Whole directory to Drupal directory
drupal/files/sparklines
so what I got there

drupal/files/sparklines
- lib
- samples

4 - I tested the samples from the browser

www.site.com/drupal/files/sparklines/samples/deficit.php
(sample that shows the US deficit -it takes the data from)
http://www.whitehouse.gov/omb/budget/fy2004/hist.html
and, it worked!! :) - but thats not an integration
so;

5- Home » create content >create page

6- i took the PHP code from
sparklines/samples/deficit.php

7- copy/paste into the page

8- changed the link to the sparklines PHP library
from;
default
require_once('../lib/Sparkline_Bar.php');
to'
require_once('sparkline/lib/Sparkline_Bar.php ');

9- changed the input format to PHP & submit

I got; blsnk page and,
Fatal error: Cannot instantiate non-existent class: sparkline_bar in /home/simplex/public_html/dp/includes/common.inc(1857) : eval()'d code on line 46

So, I can rwalise say I am missing wrapping the theme/site around the PHp code (or isit another way around?)

well, I am not a PHP coder.

now on
1- I need some help about how to integrate Sparklines and what I am doing wrong on above steps or whole idea is wrong and there is another way?

2- Some documentation about how to integrate a PHP code with a library taken from somewhere else that could be a tutorial of -how to case into Drupal Handbooks would be useful to all users

3- Finally its a open proposal to crate a sparklines.module to integrate properly into Drupal as I try to outlined possible usages for Drupal above

-regards