I design software to import data into MS SQL Server and have found that the easiest way is to convert it to CSV format first then import that file.
Search for "DBF2CSV" and "Perl" and you will get the freeware version that I found to be the best. It can be run from a ".BAT" oir ".CMD" file and a sample is provided. Access should then be able to import from the CSV file(s) without problems.
Due to the generic import I was writing, I had to delete the first row of the imported data which contains the DBF field names after importing though.