The non-certificated pilot/owner of the powered parachute reported that he aborted his first takeoff because the riser lines to the canopy became entangled. During the subsequent takeoff, the powered parachute encountered a "gust of wind" from the left, and the craft was pushed into trees to the right of the runway which resulted in substantial damage to the airframe and canopy. After the accident, the pilot/owner reported to a Federal Aviation Administration inspector that there were no mechanical deficiencies that would have precluded normal operation of the powered parachute.