Ozzy
I take it you want to modify the default template.
First off, open Maximizer Editor. DON'T do it by clicking on the write a letter icon or anything else. Open the editor and open * Letter. If you did this right * Letter will show up in the title bar. If you did it wrong [Untitled] will show up.
Modify your letter as needed and save. Close the editor. NOW click on the icon to "Write a Letter" and you'll see your new template.
Done
IRIS