Chad,
I have written a free program to do this. It's called NK2.info and may
be downloaded here:
http://www.nk2.info
NK2.info was designed specifically to import your Auto complete cache
file into your contacts. Nk2.info is a free, small, stand alone utility
that works with all versions of Outlook since 2000. A refreshing
alternative to the pay solutions, IMO. Then again, I'm a little biased
since I wrote it. =)
Cheers,
Josh Davis