Megan,
I'm basically recreating the "Mountain Lion Corridors" tutorial using my
own parameters.
Here's a few screenshots I hope will help you out. I noticed in the file
save dialog it says "All Tables" but not types or file extensions are
listed. I tried to add an extension such as .txt to the file name, and it
seems to work. Maybe it just needs a default extension to to make it
"idiot" proof . The same thing happens when I use the Reclassify tool
from outside of Modelbuilder.
Also, what make it a bit confusing is the file save and load dialog boxes
don't update when they are closed and reopened. I learned that I needed to
refresh them manually by clicking the refresh button at the top of the
window.
Hope this helps.