Well, it's done. Here's what I said (I used your wording as part of it!):
Hello,
This is rather embarrassing (particularly coming from a computer
tech!), but I realized after I had sent my resume and reference
information that I had sent an older copy of the file with several
errors.
I am very interested in this position and hope you will accept this
complete and correct version instead of the original email sent
2/23/05.
I thoroughly apologize for the inconvenience!
Thank you for your time,
That's great!
Heh... this would have been funny:
P.S. On my resume, I have replaced all references to being "detail oriented" with "Has follow-through to find and correct errors" ;~D
I think that sounds good! I am sure they'll understand...
If I ever get done with this meeting I'll go home and send you some pictures...