Require help with Pivot table query in SQL Server 2008

Hi,

I have a query regarding converting columns to rows in SQL Server 2008. Please look at the table below. 

I need the output to look something like this :

The columns for the children can be dynamic or fixed ( max of 6 children) based on the Family_ID.  For Example: A family can have 1 child or more than 1 child.

Not sure how to go about it. Would appreciate your help :)