Brian, If the backup copy option was on you might find this on your harddrive, search for a

.bws file and rename it try to open it after renaming.

If this does not help then you have to restart with a brand new project, you can still use text and pictures to copy and paste but you have to start with a new project;

Found this text in the help file:

Every time you save or export / upload your project an automatic backup copy of your project is created (the version saved will be the preceding one to the project you are working on). The backup project will be saved with a .BWS file extension, if at any time you need to use the backup copy you can rename the file with a .IWP file extension and use this copy.

Hope this helps !, goodluck !