Well, as it seems that Facebook are sitting on their laurels over this I have been working on a solution for the interim period.
What I have done is go back to using the more than capable mobile site, for notifications I use push email (my email for fb is a gmail one so it can be set up as an exchange account).
Then, under the new mail heading in the notification centre it is possible to set up all the email accounts with separate notification tones, so I selected tri-tone for Facebook. (iOS 6 only).
As the Facebook integration is signed into separately in the settings all the integration of iOS 6 still works, so at this point you can delete the Facebook app completely if desired till they sort their sh1t out!!
And another thing too, mobile safari now seems to support the uploading of files via the browser since the update, so you can even use the mobile site to do that too, not that it's a problem anyway since being able to do it via the gallery, just something I noticed that's useful to know.
And another thing yet, use the "create shortcut to home screen" option in the browser to create yourself a nice replacement Facebook icon