You don't need tables, but word files. The "tables" are the name of the compiled structures, if you want to build your own (based on your ESSID), you can start with the dictionnary file you used to crack your WPA.
If you want more complete/efficient tables, of course, you'll need big word files, you can find some on this thread : http://forums.remote-exploit.org/pen...-wordlist.html
One you have the list, you can use Airolib or GenPMK (included with Cowpatty) to compile your osn tables. Beware, such a computation requires a lot of work from your CPU (--> much time !) and also a lot of disk space, if your wordlists are pretty big.
Have a look at Xploitz videos : http://forums.remote-exploit.org/tut...databases.html
Note that if you are using BackTrack4, and if you have a (recent, > 8*** series) nVidia graphic card, you can use Pyrit to speed up the generation of the tables. Some videos were published about it, Google is your friend