[Brian]

Sorry for the confusion - no need to import unless you have data you're hoping to merge with the database that's already set up on your MacBook Pro.

If you just want to copy the database over to the new machine and start adding data there, all you need to do is quit OmniFocus drag the file to
<your home folder>/Library/Application Support/OmniFocus
(replacing the existing file, if any)

Once you restart OmniFocus, it'll open up the database just fine.