Toolbar help: How to make buttons dynamic using images

//Globals:
	TBBUTTON tbb[2];
	HWND hTool = NULL;
	HIMAGELIST imagelist;

//WM_CREATE:

			// Create Toolbar
			hTool = CreateWindowEx(0, TOOLBARCLASSNAME, NULL, WS_CHILD | WS_VISIBLE, 0, 0, 0, 0,
				hwnd, (HMENU)IDC_MAIN_TOOL, GetModuleHandle(NULL), NULL);

			if(hTool == NULL)
				MessageBox(hwnd, TEXT("Could not create tool bar."), TEXT("Error"), MB_OK | MB_ICONERROR);

			// Send the TB_BUTTONSTRUCTSIZE message, which is required for
			// backward compatibility.
			SendMessage(hTool, TB_BUTTONSTRUCTSIZE, (WPARAM)sizeof(TBBUTTON), 0);
imagelist = ImageList_Create(32, 32, ILC_COLOR32, 3, 3);
			HBITMAP hToolIcons = LoadBitmap(GetModuleHandle(NULL), MAKEINTRESOURCE(IDB_TOOLBAR));
			ImageList_Add(imagelist, hToolIcons, NULL);

			SendMessage(hTool, TB_SETIMAGELIST, 0, (LPARAM)(HIMAGELIST)imagelist);

			ZeroMemory(tbb, sizeof(tbb));
			tbb[0].iBitmap = 0; 
			tbb[0].fsState = TBSTATE_ENABLED;
			tbb[0].fsStyle = TBSTYLE_BUTTON;
			tbb[0].idCommand = ID_FILE_CONNECT;

			tbb[1].iBitmap = 2;
			tbb[1].fsState = TBSTATE_ENABLED;
			tbb[1].fsStyle = TBSTYLE_BUTTON;
			tbb[1].idCommand = ID_FILE_SELECTSERVER;

			SendMessage(hTool, TB_ADDBUTTONS, sizeof(tbb)/sizeof(TBBUTTON), (LPARAM)&tbb);


//and when the user clicks on the button I have the following code:
		case ID_FILE_CONNECT:
			{
				if(!g_CONNECTED)
				{	
					CreateNewMDIChild(g_hMDIClient);
					TBBUTTONINFO tbInfo;
					tbInfo.cbSize = sizeof(tbInfo);
					tbInfo.dwMask = TBIF_IMAGE;
					tbInfo.iImage = 1;
					//tbb[0].iBitmap = 1; 
					int i = SendMessage(hwnd, TB_SETBUTTONINFO,(WPARAM)ID_FILE_CONNECT, (LPARAM)&tbInfo);
					if(i == NULL)
						MessageBox(hwnd, TEXT("Could not update tool bar."), TEXT("Error"), MB_OK | MB_ICONERROR);
					
				}
			}
			break;
		}
		break;

tbInfo.idCommand = ID_FILE_CONNECT;