Original iSight with Mac Mini

I'm trying to hook my original iSight camera up to my Mac Mini. I have a couple of questions...

1. Of course, the iSight uses the Firewire 400 cable. I have a 400 to 800 Adapter that came with my iPod 3G. Unfortunately that adapter does not seem to fit the Firewire 800 port on my mini. My question is, what adapter do I need?
2. Since iChat AV is no longer available, will the camera work with other applications? I specifically need to attend 2-way Video Conferences using Cisco's Jabber Application.

I have to be on a conference call in 5 days, so any information you can give would be very helpful.

I live in a rural area of New Mexico and there are no webcams available locally that work with Mac. Finances prevent me from traveling to a large town to purchase one until after the first of the month. Which is too late!

iSIGHT Cameral: Model A1023 circa 2003 (Silver Camera Body)

FIREWIRE ADAPTER: 6 Pin Female Firewire 400 to Male Firewire 800, came with iPod 3G 10B whenever that came out

COMPUTER: Late 2012 Mac Mini, 2.3GHz, 8GB Ram, 1T HD running OS X 10.9.4 (internal HD) and Yosemite for Public Beta Program (External HD)