http://www.quilterscache.com/
This is the site that she mentioned. It may be that she found each of the blocks and combined them to make the wall hanging. On this site, you will find tutorial for paper piecing, and if you are good to go on applique, paper piecing will be a breeze.
Go down the page until you see a place that asks, where do you want to go today?
Open the menu and click on Blocks galore ... you will be able to select a letter and find the blocks you are looking for quite easily <wave>