How to Make a Flowchart of a Program Listings

After trying to force myself to learn, finally met as well. How: other people's questions answered ... hehehe. One of these questions nih:

How to create a flowchart of a program listing.
Questions & Listings courses taken from:
 http://id.answers.yahoo.com/question/index;_ylt=AvmXi46dtU9Rhwzg6DO.2N8XZnRG;_ylv=3?qid=20090825092136AAqW9Nk

I created this flowchart using Microsoft Office Visio 2003, to be able to get the raw source. Please send messages in:
 http://www.nusinau.com/contact/