A newer version of SEN Enabler is out from the big 5.1 update. These update brings fixed 4.46 CFW bugs, advance options and a few other tid bits.
SEN Enabler has been updated to v5.1.1 with these changes: Added advanced option, Fixed CFW 4.46 bugs, Fixed CFW Rebug 4.30 bugs, Added CFW/OFW modes. Also checkout this SEN Enabler Tutorial by Nathan_r32_69. Checkout all the details below.