HELP! A904 skipping 2nd gear.

OK guys, I finally had time to pull the pan. There wasn't anything floating around in the pan and but there is definitely something wrong. The band lever is just flopping around all loose, and the strut is nowhere to be seen. If you have a look at the picture I took you'll see the band lever hanging down.

So what's my next step? Should I remove the valve body in the hopes that this is something I can fix? Or am I better off to button it back up and get the car to the shop?

As always, your replies are much appreciated.

-Mike