NAVION PLT CONTACTED VASI LIGHT WHILE LNDG IN WX AT RZZ.

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ON A FLT FROM PBF TO RZZ; I DEPARTED FROM HKY AT XA40 ON MY LAST LEG. THE MAINS WERE FULL (40 GALLONS) FOR A 185 NM OR 1 HR 40 MIN FLT. IF THE ENG BURNED 11 OR 12 GPH; I WOULD STILL HAVE OVER 1 HR OF FUEL TO SPARE. BEFORE ENTERING GREENSBORO AIRSPACE; I CONTACTED THE RALEIGH FSS FOR AN UPDATE ON HALIFAX. THE WX WAS CLR BELOW 12000 FT AND 9 MI VISIBILITY WITH NO NOTAMS. I CONTACTED GREENSBORO APCH AND WAS CLRED THROUGH THEIR AIRSPACE. ON ARR AT HALIFAX; I COULD NOT GET THE RWY LIGHTS TO COME ON BY KEYING THEM. I MADE AN APCH AND WAS ABLE TO SEE THE WINDSOCK AND VASI LIGHTS; BUT WAS UNABLE TO FIND THE THRESHOLD LIGHTS FOR RWY 23. AS I CAME UP TO TFC PATTERN ALT; FOG WAS STARTING TO FORM AT 200 FT AGL. THE WX THAT MORNING HAD SHOWN THE ATLANTIC COAST IN FOG. THERE WAS ACTIVE LIGHTNING IN THE EMPORIA AREA AND I DIDN'T WANT TO TAKE THE CHANCE THAT ROCKY MOUNT WOULD BE FOGGED IN BY THE TIME I GOT THERE. IN THE PATTERN I THOUGHT I IDENTED THE RED THRESHOLD LIGHTS; BUT THEY DID NOT TURN GREEN WHEN ON BASE. I TRIED TO IDENT THE RWY BUT COULD NOT. THE NEXT TIME AROUND; THE LIGHTS FROM THE TOWN SHOWED THE FOG'S GROWTH. I LINED UP TO THE R OF THE VASI LIGHT AND MADE MY LAST APCH. WHEN I IDENTED THE RWY; I THOUGHT I WAS ON THE R EDGE OF THE RWY; AS THE RWY WAS WET AND APPEARED TO BE WATER ON THE SIDE OF THE RWY. I WAS ACTUALLY ON THE L SIDE OF THE RWY AND CORRECTED INTO THE VASI LIGHT. THE ARPT PERSONNEL COULD NOT DETERMINE IF THE BREAKER FOR THE RWY LIGHTS HAD BEEN TRIPPED BY LIGHTNING OR PLACED IN THE OFF POS.