You have the option of either importing the entries as yourself —the author that you are currently logged in as — or creating new authors for each author name found in the original set of entries. For example, if your weblog is/was a team weblog, you would probably want to recreate the original set of authors, rather than import all of the entries as yourself. Otherwise you probably wish to simply import the entries as yourself.

If importing the entries as you, check the Import as me box.