Problem with CreateTexture()!

struct tmTexture
{
	LPDIRECT3DTEXTURE8 ptexture;
	int TextureID;
	string TextureName;
	tmTexture *next;
};

class CTextureManager
{
private:
	int hash(int key);
private:
	tmTexture **m_pptexturetable;
	int m_iNumofLists;
	LPDIRECT3DDEVICE8 m_pD3DDevice;
	static CTextureManager *m_singletonptr;
public:
	CTextureManager();
	ErrorMessage Setup(LPDIRECT3DDEVICE8 Device, char filename[] = "textures.txt");
	~CTextureManager();
	ErrorMessage GetTexture(int id, LPDIRECT3DTEXTURE8 &ptexture);
	ErrorMessage AddTexture(string filename, int id);
	static CTextureManager *GetSingleton();
};

ErrorMessage CTextureManager::AddTexture(string filename, int id)
{
	ifstream fin;
	CBitMap bitmaploader;
	CPixel *pBitmap;
	int Width, Height;
	tmTexture *tempnode;
	D3DLOCKED_RECT kLockedRect;
	filename += ".bmp";

	//Load bit map data
	bitmaploader.Load_BitMap(filename.data(), &pBitmap, &Width, &Height);

	//allocate memory for node
	tempnode = new tmTexture;
	//allocate memory for texture
	tempnode->TextureID = id;
	filename.erase(filename.end() - 4, filename.end());
	tempnode->TextureName = filename;
	tempnode->next = NULL;
	//Create Direct 3D Texture
	if(FAILED(m_pD3DDevice->CreateTexture(Width, Height, 0, 0, D3DFMT_X8R8G8B8, D3DPOOL_MANAGED, &tempnode->ptexture)))
	{
		return emD3DTextureFailedToCreate; //Problem is here! The texture is never created.
	}
	tempnode->ptexture->LockRect(0, &kLockedRect, NULL, 0);
	DWORD *piTextureBuffer = (DWORD *) kLockedRect.pBits;

	for(int x = 0; x < (Width * Height); x++)
	{
		piTextureBuffer[x] = D3DCOLOR_XRGB(pBitmap[x].GetPixel().r, pBitmap[x].GetPixel().g, pBitmap[x].GetPixel().b);
	}
	
	tempnode->ptexture->UnlockRect(0);
	delete[] pBitmap;
	//Find which list to insert texture in and move to end of list
	tmTexture *cur = m_pptexturetable[hash(id)];
	for(;cur->next != NULL; cur = cur->next);
	cur->next = tempnode;

	return emNoError;
}