Yes, if you mount the screen on the passenger side, the door opens to the front of the vehicle. There is also a door that opens to the vehicle.
We really liked this awning. One person can set it up in about 3 minutes (although it took me awhile to figure it out the first time). I have a Jeep Cherokee so staying in the vehicle once arriving in camp really isn't a enjoyable option if there are a lot of bugs- and we ran into a lot of flies and bees. This netting made evenings very enjoyable. Perhaps with your van, it isn't a big deal to hunker down in it if the bugs are bad but regardless I think this is a great investment. If you are thinking about one and you need it soon, I would get it from North-Westy. They only have a few and I couldn't find one anywhere else in the US (including Northridge4x4) as ARB is backordered until some time in August. I did find a ARB vendor in Canada who had some (ouipack.com) so that could be an option. Definitely a good purchase.