http://neowin.fh-net.com/files/DLE_IE.zip
Elementary wizards for Immelman Exits and Dive Loop Entrances. Note, these are not wizards that create the entire element, only the exit and entrance respectively. To make an entrance or exit, just make a 180* turn and match the radius up with the top of the element.
NOTE: I did not create the actual formula part of the wizard. All credit for this goes to Buster.
Enjoy.
P.S. Make sure you check out Coaster Hoster. http://neowin.fh-net.com/