The problem with searching for anything over 18 months is you have to use your browser's search function, page by page.
I was searching for "MACS" on every page, mainly paying attention to ones authored by you. I've now gone back through '03 as well. No dice.
I'll fill you in on how to search old posts though. Be warned, it's tedious.
Take this link for instance:
http://www.cigarbid.com/auction/forum/forum.cfm?forumSelect=%207&msgB=20040101022200&p=32
Notice the numerical string near the end. It starts with YearMonthDay. 20040101 is Jan 1st 2004.
That'll give you a starting date, pick any date you want. The very last # is how many pages on either side of that page you can go through by "previous page" or "next page". Once you run out, you can just change that last #. (I was working in groups of 80).
Like I said, I've done 03 to today. Have fun. 😉