I dont understand what is happening in these forums. Posts that I have made before seem to be re-appearing in new topics!

here is a example:
/yabb?num=1328045573

Now go down to Reply #3 - Yesterday at 12:36am

That post is somthing that I posted a week or 2 ago in a completly different topic.

I have seen other things like this happen, and thought maybe it was just error on my part. But now seeing this, I know for sure I did not post that yesterday, and I know for sure I did not post it in that topic!

How could this be happening?