Sequence naming

I know that certain sequences have certain names associated with them in the engine, i.e. root,run, etc. Now in the script file for the character model there are lines linking the animation file to those particular names, such as:

sequence0 = "./player_root.dsq root";

Now a couple questions.
1)Is order important here?
2)Does sequence 0 always need to be root or does a sequence just have to be bound to the root name in order to function?
3)In the orc example seq 1 is run, 2 is back, 3 is side etc, does this need to be the case for all character models?

Also about the sequence name before it is exported, in my case the animation is still in Max. A name is assigned to the sequence helper.
4)Does the name of the sequence helper need to conform to anything?
5)Should it be named after its engine counterpart, like root, run, walk, standjump, etc.
6)Should it be named sequence0, sequence1, sequence2, etc to correspond to the sequence names in the script for the model?
7)Does it not matter what it is named?

With some testing I noticed that I had a my root animation sequence helper and my celsalute sequence helper both named sequence01 and this caused celsalute not to work, so i am assuming that the sequence helper names for a particular character model need to be unique. Do they need to be unique on a global scale or just per character?

Any help or insights would be appreciated. I had looked at this which seemed very descriptive but was quite dated so I do not think a lot of the information was still accurate.