Click on your project in the brower tab. Make sure nothing is highlighted in your main bin. Then export the project as an XML. It is in your pulldown menu under File/Export.
Make sure you see your entire project at the top of the dialog box.
Check all the appropriate boxes.
You will be asked for a choice of 1-4 versions. Try the #1 version first.
After you get the XML, open up FCP in your IMac, then import the XML.
Save it as a new project or save it right into your current project.
Good luck,m
Jeff