Go to the Orphan tab, Sponsored Orphans List.  Find an Orphan listed that shows Needs Written True.  Read their bio, by double clicking on that field.  If you think you can write to that one, great, if not, keep looking.  Once you find an Orphan to write to, right click on their name and it will show "Write".  Put together a paragraph or two to them.  Then the letters get up or down voted.  Once it has enough up votes (7) it will be approved.  Once it goes out in the batch send, your fee will drop to 0% for 60 days.  If ALL the Orphans get written to in a 60 day period, then everyone's fee drops to 0%.