You can either use Tomtom Home to update to the latest official navcore or use one of the various other navcores that are available. Depends really on what map & map functions you want to use. Then use an activation tool to patch the ttsystem file, add compatible map & postcode files & then use the tool to activate the map.
The safety UK Cameras are from tomtom - never used these myself, but think they will also need activating, the other files are from pgpsw & do not need any activation.
Have a look at the guides posted in here & also look at the latest v895 map thread.
BBS Tools should do all the patching & activating.