Hi Dirk,
Are they copies of the same logo 67 times?
If so, and you have the very latest madCAM 5 beta, you can program one, then use Rhino's copy command to copy the toolpath to the other 66 locations. Don't try this with an older madCAM 5 beta as there was a bug that could crash the tool through the workpiece.
If you are using 4.3, you will need to copy and paste the cutter path onto itself then move the copy to it's next location. It's tedious, but it will work.
Hope this helps,
Dan
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)