Can't get SSMA to work.

I have SSMA version 5.1.1257.

First thing that happens is a yellow exclamation point appears next to my Access database after I select it:

Error Occurred while loading Children
Could not load File or Assembly "Microsoft.Access.Inerop.Assembly.Dao. Version 12.0.0.0
Culture=Neutral, PublicKeyToken=71e...blahblah.  The System cannot find the file specified

If I continue on, I get:

Required mdf-file is not loaded.

Then I get:

Conversion Error:
There is Nothing to Process

Any ideas how I can fix this.  I'm on Windows 7 trying to upgrade a very old Access file to sql 2008 and I believe that is the problem.  My computer has crashed about 3 times since this original file was created and this is the 3rd piece of hardware upgrade since the file was created.