Ok, thanks to djc i have these great instructions which im following exactly only im generating the DCT with easyusetools as my anti-virus will not ignore tomtom4.exe long enough to even extract it:
• Download http://download.tomtom.com/sweet/nav...re-GO_LIVE.cab and copy the complete contents to your device.
• Download SE_ttsystem.9.026.483454 and copy the ttsystem file to your device overwriting when prompted (No need to patch anything yet as the SE navcore is pre-patched)
• Download your required map ...