When I attempt to import the Posterous wordpress_export_1.xml file I get the following error: Could not read the XML file. Please make sure you are uploading a valid .xml or .xml.gz file. For more info, please see our documentation.
The wordpress_export_1.xml file is 819KB in size; the entire exported posts directory is 1.5MB. I'm on Mac OS X Lion using Chrome.
The blog I need help with is thisisforexportonly.wordpress.com.