This popped up when I beat 'yellow' and 'red' at the jackal labs. It appeared exactly after the phase ended and the other one started, so i can't play the other chapter.

PS: I already downloaded the patch

hmm. did you save at the cube BEFORE sticking the patch in? Mine worked fine but I patched before beginning the game.
OH, and on a related note, I'm linking to a bit of music- deliberately made to loop in the background, and hence repetitive- I made for Neok that he said he hopes to use in the game. It reminds me of pulsing machinery and fast heartbeats.
A Tense Urban Beat

hmm. did you save at the cube BEFORE sticking the patch in? Mine worked fine but I patched before beginning the game.

I did as so too.

Same thing here, I just thought it was because the demo only went to phase 3, was it extended?

Is this game still being made because AAV was my favourite rm2k3 game and this uses the same way that game was made and this also looks really amazing also.

rpgmaker.net says yes: http://rpgmaker.net/games/272/
If you scroll down a bit, there's a blog entry from two weeks ago, saying the full version will be released on october 10th. :-)
(Now to search my calendar so I can mark the day...)

Yay thank you so much for completing it this was and still is my favourite rm2k3 game

I've made it up to the Underwater Facility so far and I really like all the new character interactions. I can't seem to find a way out of the facility, though, I think I've tried every water setting at every place and I still can't seem to trigger any events. Any hints?

Also, since the characters are switching around so much, I haven't really done any grinding or anything, just used whoever was available and abused the Unequip All command, because whenever I equip a shiny new mode to a character, they're sure to disappear within ten minutes. I have Leon on 41, Erin somewhere in the late thirties and Celia as the lowest on 30. Is that alright for this part?

The flying guy who hands out skills is giving me a headache, too. The only people I guessed correctly and was actually able to bring to him so far are Jake and Erin. I tried just about everyone for the Slums and the Bridge and he keeps refusing them.