Need help with smooth scrolling tiles in direct3d

Okay this is a simple work in progress. The progress has come to a halt because I cant figure out how to get the tilemap to scroll smoothly. Here is the relevant code. With the scroll plus the x and y its no longer smooth scrolling and when I use just the scroll it works but it no longer looks up my tiles. im not sure whats wrong exactly but help would be good. Thanks for looking.

void DrawTileMap(ID3DXSprite &mapsprite,int tiledimx,int tiledimy,RECT ▭,CGRAPHICS *anobject)
{
	int numtilesx=20,numtilesy=15;


	//are tiles power of 2
	if(tiledimx/2!=0&&tiledimy/2!=0)
	{
		//Print tiles must be power of 2
	}

	//Load Level file using FILE I/O store in structure

	//Draw Screen
	for(int y=0;y<numtilesy+1;y++)
	{
		for(int x=0;x<numtilesx+1;x++)
		{
			//mapspritedraw();

			int scrollx=worldx/tiledimx;
			int scrolly=worldy/tiledimy;

			offsety=scrolly & (tiledimy-1);
			offsetx=scrollx & (tiledimx-1);

			tilecoord.x=(x*tiledimx)-offsetx;
			tilecoord.y=(y*tiledimy)-offsety;

                 //Problem maybe at this line????
			TileLookUp(97,32,32,map[scrollx+x][scrolly+y],rect);

			mapsprite.Draw(anobject->pTexture,▭,NULL, NULL, 0.0f,&tilecoord,0xffffffff);
		}
	}
}

[Edited by - abcdefg on April 20, 2005 10:43:16 PM]