I think having the same problem.
When I try to import my address book, several time with a csv file, the contact are imported (first name, last name, phone, website, street, post code, city...) but never the email address.
Here the fields in the model of CSV file that I used for my tests :
Title,First Name,Middle Name,Last Name,Suffix,Company,Department,Job Title,Business Street,Business City,Business State,Business Postal Code,Business Country,Home Street,Home City,Home State,Home Postal Code,Home Country,Business Fax,Business Phone,Business Phone 2,Callback,Car Phone,Company Main Phone,Home Fax,Home Phone,Home Phone 2,ISDN,Mobile Phone,Other Fax,Other Phone,Pager,Primary Phone,Radio Phone,TTY/TDD Phone,Telex,Account,Anniversary,Assistant's Name,Billing Information,Birthday,Business Address PO Box,Categories,Children,Company Yomi,Directory Server,E-mail Address,E-mail Type,E-mail Display Name,E-mail 2 Address,E-mail 2 Type,E-mail 2 Display Name,E-mail 3 Address,E-mail 3 Type,E-mail 3 Display Name,Gender,Given Yomi,Government ID Number,Hobby,Home Address PO Box,Initials,Internet Free Busy,Keywords,Language,Location,Manager's Name,Mileage,Notes,Office Location,Organizational ID Number,Other Address PO Box,Priority,Private,Profession,Referred By,Sensitivity,Spouse,Surname Yomi,User 1,User 2,Web Page
I use E-mail Address to import the email, but I never can see any email in the contact imported.
What should I do ?