I stumbled onto this project... somehow. I was researching Voices of the Lifestream, I believe. I found a forum topic calling for people willing to serve as voice artists for this project.
I'm not a voice artist, unfortunately, and I've learned from a past experience that I... suck at it. I am a programmer though, and if you need any help there, I would be willing to pitch in. I don't really know anything about modding FF7, but I could learn.
Anyway, now on the fan part.
I sincerely hope this project reaches it's conclusion, I believe what you're doing is completely worthwhile and I wish you the best of luck. Final Fantasy VII, in my opinion, is one of the best games ever made, not because of the graphics or the music (though it is quite good considering the limitations of MIDI), but because the plot line and characters could easily make an excellent novel. When the interactivity that a game provides is added to these, the effect is a game that has lasted years past those around it, and that will remain popular for years to come.
With this project, you're adding a whole new level of immersion to the plotline and characters, and when this project is complete, I have no doubt that the Final Fantasy VII experience will be drastically changed for the better.
This may already seem obvious to you, but I'm posting it because I'm being driven mad by the responses to the casting call topics on various forums. This project deserves respect, and I'm sure that when you finish, you will receive it.