[Answer]-Trying to use Django, do I need to install Apache manually if Wamp already did

Strictly interpreted, Django doesn’t “use” Apache. Apache is just one way to direct requests (via mod_wsgi, for example) to your django app and returns the result to the user.

The existing Apache install will be fine. It doesn’t matter where it is as long as it’s running and reachable.

You will need to install mod_wsgi and configure it so that it knows about your Django app.

You can find documentation for configuring Apache and mod_wsgi here:
https://docs.djangoproject.com/en/1.5/howto/deployment/wsgi/modwsgi/