If you followed Gizmo's suggestion correctly.
Then as I recall there is a hard coded value that only looks back "x" number of days.
So if you don't have a active forum , as it appears you don't, then after 11/30 your posts are to old to show.
What you could do as a test is make some test posts in the forums.
If they show then what I said is true.
That said, to get them out of the posts island you will need to follow Gizmo's directions to clear them out after you delete them.
