You are referring to the iMovie HD 6? And which version of FCP?
I've not done it this way; instead, I've done it the other way round: created/edit clips in Final Cut Express and then moved them over to iMovie HD. Since they create different file formats, the only way I've found is to export as a Quicktime movie by going to File menu > Share > Quicktime > Expert Settings > next windos, click on Options > set yours to your liking; here is a screenshot of the ones I use:
I then drag/import the resulting file in either FCE, iMovie HD, or the new iMovie.
If you have been working on the iMovie event& project on your mac it is not an issue, in my case the client had done a pre-edit on their mac in iMovie, it worked a treat.
The manual steps through how to import the project to FCPX
Import from iMovie
You can import any of your existing iMovie projects and your iMovie Event Library into Final Cut Pro.
Note: If you want to import an iMovie trailer project, you first need to convert it to a standard iMovie project. For more information, choose Help in iMovie ‘11 and search for “Convert a trailer to a project.”
Important: iMovie projects and clips from the iMovie Event Library are not automatically analyzed during import because they retain their original analysis results from iMovie. You can override iMovie analysis by analyzing your clips in Final Cut Pro after import. For more information, see Analyze your media.
- In Final Cut Pro, choose File > Import > iMovie Project and locate your existing iMovie project, typically found in the Movies folder on your hard disk.
- Click Import.
- In Final Cut Pro, choose File > Import > iMovie Event Library.
- Read the message that appears and click OK.
I may be wrong, but I do not believe this works with the old iMovie HD 6 (which is from around 2006). A recent version of FCP may recognize a newer iMovie version, but I don't believe it'll import from the old iMovie HD. The article you linked to in fact mentions iMovie 11. Here is an excerpt from the iMovie HD 6 Manual (page 32):
I prefer to work with iMovie HD 6 and, most likely because it does have certain limitations, I have to export it as a Quicktime movie which can then be imported into most apps.
If you cannot find a solution here, I would suggest you repost your question in the iMovie forum - you'd find very knowledgeable people there who actually still use the old iMovie version. If you'd like, I'll ask the hosts to move the thread over?
Take a look at the post by Ian here in this thread:
One option to consider is to do this in two steps. First import your iMovie 6 project into iMovie 11. Then import the iMovie 11 project into FCPX. This will not lose any quality from your DV files.
When you import iMovie 6 into iMovie 11, you will get all your clips in an iMovie 11 event. The clips that you edited into the timeline will go in an iMovie 11 project. All transitions will be replaced with simple cross dissolves. Titles, music, and photos will not transfer over. But within these limitations, it will do the job, losslessly.
When you import the iMovie 11 project into FCPX, you will have all the Event clips and the edited Project clips.