There's several different strands of HPV, and it usually takes about 2 years for the immune system to kick in and clear you of the virus. Think of it like the common cold... it is possible to contract it a again. If it's only been a year I'd say it's still the same as before. Were you ever treated for it?
My doctor took three samples during my colposcopy and treated it with cryosurgery a week later...