Connecting Mixvibes Controller and Cross DJ Issue

Afternoon all,
Really help you can assist me with this one. I am trying to sync up my MixVibes U-Mix Control Pro with a version of Cross DJ I purchased yesterday (version 3.3.11)...
My audio preference settings all seem to be in order and the controller can play, stop, cue tracks.
The problem I have is that the Cross fader doesn't seem to be working at all and when I try and cue a track nothing is happening and the headphones don't cue the channel I need....I have looked in the MIDI settings but don't seem to be able to unlock them (there is a padlock next to all of the MIDI settings)...can anyone help please as I really need to use the Cross fader and be able to cue up as I need to use this for a party tomorrow! Any help greatly received!!!
Really help you can assist me with this one. I am trying to sync up my MixVibes U-Mix Control Pro with a version of Cross DJ I purchased yesterday (version 3.3.11)...
My audio preference settings all seem to be in order and the controller can play, stop, cue tracks.
The problem I have is that the Cross fader doesn't seem to be working at all and when I try and cue a track nothing is happening and the headphones don't cue the channel I need....I have looked in the MIDI settings but don't seem to be able to unlock them (there is a padlock next to all of the MIDI settings)...can anyone help please as I really need to use the Cross fader and be able to cue up as I need to use this for a party tomorrow! Any help greatly received!!!