Ok, there's a think that is killing me from inside xD
The dungeon in there was locked Rena ( in the final of the ep.09 ) .... was it the same dungeon in there was Tsukasa on the begining of //Sign?
PS: Im sure i have seen the netslum in this episode!!
Nope,that is a completely different area.In //SIGN,that dungeon was an area that could be used by any player,remember how Mimiru was in there too? The dungeon that Rena is in,is a completely different one,where only her and the dead players are being held at,they even tell you that,the area is incomplete and shouldn't have access for players to go in or to go out of that place.The kid hackers used that incomplete area to confine the dead players there.
It could still be the same place even from before as the years has passed.But the dungeon that Tsukasa was in,remember the dungeon looked like the insides of a monster? With all the sticky,slimy, environment,the rib cage ceiling? The area that Rena is in,just looks like some temple or a cave.That is what I believe.
There's really no such thing as "The" Net Slum [unless we're talking about my website... ]. It's unsure of which server the net slum they go to in //SIGN was, but in volume two you go to a net slum on Lamda. It's more than likely that all servers have a collective net slum - it restores buggies and crummy data, anyway. XP
and god said unto cain, "wow you're pretty stupid."
Didn't Helba in SIGN say that there were multiple versions of Net Slum? I remember her saying that, too, so if I'm correct, there's more than one Net Slum... But I don't think it's a place you can just go to whenever you want.