You may need The Standing Spot to place some standing positions, unless you place it under you after you are already standing somewhere, but it is furniture so its easy to move around. You are just buying the background- so no my cute girl avi and the clothes made by other talented devs does not come along! lol.
The Standing Spot is made by Whystler. Here is the link if you would like to purchase it. http://www.imvu.com/shop/product.php?products_id=208884