Yes, the blocked up Old Navy entrance is the former Wren's exterior entrance. The Rike's / Shilito Rike / Lazarus / Macy's space is two-level with an escalator, but the rest of the mall is single level, including the JC Penney.
The Sears is still there, but it's a ghost town. The last time I bought something there, we were the only customers in the entire store.