Quicktime for Windows should install and work via an updated version of Wine without any modifications to the config file. Just be sure to run Quicktime in a desktop window, because, for some reason, Quicktime screws up the look of the desktop. Another way to make sure it runs without messing up the desktop (I haven't tried this myself), is, in the DLL Overrides section of the config file, ddraw should be set to the following:
ddraw = ""
Other than that, Quicktime has always worked for me, and it actually runs even better through Crossover plugin from Codeweavers.