How do I go about doing this? datablock issue

ProjectileData::ProjectileData()
{
   projectileShapeName = NULL;

   sound = NULL;
   soundId = 0;

   explosion = NULL;
   explosionId = 0;

   waterExplosion = NULL;
   waterExplosionId = 0;

   splash = NULL;
   splashId = 0;

   hasLight = false;
   lightRadius = 1;
   lightColor.set(1, 1, 1);

   hasWaterLight = false;
   waterLightColor.set(1, 1, 1);

   faceViewer = false;
   scale.set( 1.0, 1.0, 1.0 );

   isBallistic = false;

   noBounceObjTypes =  0;
   
   // Explode on Water Impact - T_F
   explodeOnWater = false;
   
   // Explode on explodetime expiration - T_F
   explodeOnExplodeTime = false;

	velInheritFactor = 1.0;
	muzzleVelocity = 50;

	armingDelay = 0;
   fadeDelay = 20000 / 32;
   lifetime = 20000 / 32;       // ***Gets overridden by Datablock if its a valid value***
   explodetime = 1000/32;     //***[b]Does NOT[/b] get overridden by datablock with known good value***

   activateSeq = -1;
   maintainSeq = -1;

   gravityMod = 1.0;
   bounceElasticity = 0.999;
   bounceFriction = 0.3;

   particleEmitter = NULL;
   particleEmitterId = 0;

   particleWaterEmitter = NULL;
   particleWaterEmitterId = 0;

   decalCount = 0;
   for (U32 i = 0; i < NumDecals; i++)
   {
      decals[i] = NULL;
      decalId[i] = 0;
   }
}