$rs = CIblockElement::GetList(array(),array('ID'=>$ID,'IBLOCK_ID'=>$arParams['IBLOCK_ID']),false,false,array('PROPERTY_FILE'));
while($ar=$rs->GetNext()) echo CFile::GetPath($ar['PROPERTY_FILE_VALUE']);
while($ar=$rs->GetNext()) echo CFile::GetPath($ar['PROPERTY_FILE_VALUE']);