All these questions can be answered here:
http://www.eyesonff.com/ff8/index.shtml
Plus you can also get the walkthrough here:
http://www.eyesonff.com/ff8/walkthrough.shtml
And if one walkthrough isn't enough ...
http://www.gamefaqs.com/console/psx/game/197343.html

It's amazing what you can find if you do a little work.