is it titled "Lake and Sea project for a newbe" ? If So, there are some black tabs above. one of them is "search"
When you choose that, there are a bunch of fields to fill out. You can pick certain fields to fill in. I picked "user" put in part of your user name, the biggest one to toggle is "one year ago, or newer" or toggle to "one year ago or older" . I also picked "members projects" to narrow the search. When I toggled to "one year ago and older" I saw your post... Since your post is over a year old, it must have been put in the archive. But it is still there.
One last thing, for some reason you have to be in a topic to see the search tab. if you just pick "forums" you won't see the search tab.