A picture's worth a thousand words.
There is a free program called Camstudio:
http://download.cnet.com/CamStudio/3000-13633_4-10067101.htmlYou can record what you are actually doing. Generally, it will make a 50Mb .avi file which compresses down to 10Mb.
If you email it to me, I can upload it for support and us to see. There are websites
www.sendit.com that send larger files for free.