Rich, click on the link again, underneath the banner is a list of links in blue ( news, tutorials, etc), click on downloads. When the downloads homepage comes up there is now a list of links in yellow under the links in blue. Click on planes in the yellow list
and when that page comes it should say General aviation in red and right under that is the link to the 150 page, click on Cessna 150. Scroll down to where it says Download files here in yellow, click on Cessna 150, enter the user name and password given to you in the flashing area that says Pay Attention (case sensitive) and the plane is yours.