Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
You say "In the picture", did you intend to attach a picture?
No, nothing else goes in there. The shaft is retained by a 6mm bolt and a lock washer, make 100% sure you replace the lock washer otherwise the shaft retaining bolt may escape if it comes loose and drop into the gearbox.