On January 22, 2000, about 1530 eastern standard time, a Stinson 108-3, N663C, registered to a private individual, nosed over after sliding off the runway during landing at Deland Municipal Airport, Deland, Florida, while on a Title 14 CFR Part 91 personal flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The aircraft received substantial damage and the commercial-rated pilot and one passenger received minor injuries. The flight originated from Deland, Florida, the same day, about 1430. The pilot stated that after flying in the local area for about 45 minutes, he returned to land at the Deland Airport. The unicom operator transmitted that runway 5 was the active runway. He made a visual approach to runway 5 and while on short final approach, another pilot reported that he was on final approach to runway 23. The pilot stated he saw the other aircraft and made a go-around. He returned for another approach and landing on runway 5. During landing he heard another pilot report on final approach to runway 23. He did not observe the other aircraft, and became pretty nervous. In his haste to get off the runway, he ran off the runway into the grass and the aircraft nosed over.