I just tried the sport & burst camera edits, and after doing the regedits, I dont see any additional options in my camera advanced menu... here are screencaps of the values I changed...
To Enable 'Burst': HKEY_LOCAL_MACHINE\SOFTWARE\HTC\Camera\P6 -> change the value "enabled" from 0 to 1
To Enable 'Sport': HKEY_LOCAL_MACHINE\SOFTWARE\HTC\Camera\P8 -> change the value "enabled" from 0 to 1
did I change the right registries?