The group seeking to build a motocross park in King William County hasn’t given up. Andrew M. Condlin, the lawyer for KW Morrison LLC, said yesterday that an appeal was filed in King William Circuit Court. Speaking on behalf of the partners, Condlin said the appeal asks the court to overturn last month’s decision by the county’s Board of Zoning Appeals that KW Morrison needs a neighboring landowner to agree to be on its application for a conditional use permit.