I have an 8 minute presentation that came out beautifully, but trying to record all that audio in one take is almost impossible!  Is there a better way to do this?  Even if we had 1 minute blocks I could so a minute at a time!  HELP!

yes.
First, use any audio editing software such as audacity which is free, to record and edit your audio and save it as an mp3:
http://blog.videoscribe.co/9-free-tools-to-pimp-videoscribe/

Then import the mp3 into videoscribe, and add and synch your images and text elements.

-Mike (videoscribe user)