Sorry to point this out, but you seem to not see the obvious posts below, some of which adequetly point out the way to do this.

You did the Toro one right.
Someone has to find the Toro, bring it or pull it to where others can help you kill it, usually at a cities Zone, then everyone promptly jumps on it, hitting it with everything you got.
If there is a tank that can face away from the Toro while it charges him/her, then that is better. If you face the Toro in any way, kinda like a THF's Sneak Attack but in reverse, you need to be hit directly from behind or the sucker will warp you to a zone.
If the tank, or anyone else that upsets the Toro enough, is near enough to the zone, then that is even more helpful to make sure you do not get warped by the Toro.
When the Toro has hand enough, and falls over, you click the "???" and you aquire a Red Sash which is stated below to have Enmity +1. if you dont know what Enmity means, look it up, but basically it means the creature you are fighting will attack the person with more Enmity.

For the Miura, which is the Larger, Stronger and rarer version of the Toro, it's set up as a lotter pop, as stated below.
Meaning it's rather random when it appears, but it will appear in place of where the Toro usually appears.
You do the same method for taking down the Miura, however, this creature has the ability to not only warp whom ever it hits at any time, even if you are facing properly...but it will also randomly warp those that hit it at all.
I know, because the punk did it to me, I was barely hitting it, but once I did it warped me right away, for no reason. Does this mean if you hit it, it will warp you? No. It's all random...or as random as I can tell.
Once the Miura falls, again there will be a "???" that you have to click on to aquire the HQ version of the Red Sash, called the Dash Sash. The Dash Sash has DEF: 1 and Enmity+2.

The rest of this event, which I believe has more involved with it, has yet to be known to me.
I'm sure there is some way to trade the item(s) to one of the Moogles, or perhaps wear one of the items while taking down one of the buffalos in another region.
There is so much to each event, and I feel that this one is far from over.

Edited, Sat Aug 27 18:52:32 2005

Edited, Fri Aug 26 05:30:45 2005

From what i have found is that he will only tele/warp you after you deal a bit of dmg. one way to pull him without getting warped is use steal, mug, any none dmg spells and my guess pets or summons. about where you are sent when he ports/warps you, when i fought him the first time my HP was in jeuno and i was port/warp there after being hit.