Items missing from inventory after conversion to 1.6

I'm missing several items from my inventory after the conversion to 1.6 ... one of which was an object named "mike's box of stuff" which is missing. It was a box of cars, furniture, etc. that I had been collecting for when I finally purchased land. When I got land, I went to find the box, and it was missing. I'm not sure where it couldhave disappeared to. Did the SL Inventory Monsters get it?

I also had stuff missing... It was all back yesterday