I did a test import, you file, unmodified, and it imported fine. The only issue that I see is all the rows where the last name is blank, those will be skipped because an individual requires a first and last name. You could add an Organization column and move the last name to the Organization column so they are imported.
When importing, did you briefly see 95% before completing?
Are you navigator to this folder using FTP?
Are the files you are importing located there?
Can you view the actual database? If so, what is the contents of the