Jami -
Basically the easiest way to do what you need to do is create a temporary table that contains the same data that you need to print out.  Then create a process, either macro or VBA,  to loop through the records based on your criteria ( 2, 4, 6 labels) and add duplicate entries into that table.

Create a label using the reports and make it the way you want it.  Base it on the temp table.

This is covered pretty extensively in the Access Advanced Level 4 course.

Also check out the Dymo Labels video.  It would maybe give you some hints and wouldn't be to difficult to print "x" number of labels pretty easily.

Mailing Label Seminar covers making multiple labels. You'd just need to adjust the loop based on your value to add X extra labels.