Ok managed to get the firmware update page to work....
Why hasn't DLINK even tested this?!
Anyway.. when click upload firmware - I get a 404 page , tried IE 7 9, 10 and 11 all the same.
It's having issues opening the following page: http://<cam-ip>/cgi-bin/admin/upgrade.cgi
So tried the upgrade again.. had a 404 - opened a new browser and pasted in the URL above...
Upgrade is progressing... fingers crossed that this fixes motion detect.