If you took a look at the AVN site, there's a link to Award Info that takes you here:
http://avnawards.avn.com/about/

And if you did a little research on the Pearl, you'd find a seating chart in PDF format:
http://www.palmspearl.com/pdf/pearlSeatingCharts.pdf

The last page of that PDF looks similar to what AVN Awards will use although maybe in a slightly different configuration.  Mostly seats.  The Pearl going from sections 101/202-204/105 and back is all reserved seating, no obstructions (at least to the stage and the center octagon), and if memory serves, permanent.  They might use tables on the main floor but if they do, you can bet that the average shmoes like us aren't gonna get access to them.

Hope this helped.

Bob