Several times the question has been asked on the TNM Discussion List: "How do you get your roster with cards left on here? Is it a plugin, or do you do it by hand, or something else?" Here's the answer...
go into TNM then the circuit you want then bring up the roster.
there's a line of buttons at the top. click on the leftmost one, the one with the dashed square. it'll say "mark" when you move the cursor over it.
click & drag over the entire roster page to highlight/select it.
click on the "copy" button just to the righ to of the "mark" button.
open up Notepad/email/etc and hit paste. now you've got the first page of your roster.
repeat as necessary with each roster page. each page displays 18 wrestlers.
Note: This is no longer neccesary in TNM7SE because there is now an "Save
Roster to File" option.