I have tried uninstalling and reinstalling and attempting to import in three browsers: Chrome, Firefox, and Safari on mac os 10.6.6
The import allows me to select the .xml file that I wish to import to my new server. However, when I click "upload file and import" my local wordpress installation goes to a new page. The main body section of the new page has nothing with a heading saying "Import WordPress". If I wait it does nothing. If I check to see if anything has been imported, it has done nothing.
Hoping this can get fixed soon... I am planning on going live with the new site soon.. and want all of my old blogs available on the new site.. hoping I don't have to manually recreate them with Copy + Paste.