JkDefrag questions

I have read this thread:

https://www.wilderssecurity.com/showthread.php?t=180104

and now I want to try JkDefrag, but have some questions.

1. I use BootIt NG for disc images, and it would be great if my defragger moved all data towards the beginning of the disc. JkDefrag does this?

2. It has (too?) many features. Is this the most recommended?:

3. Is it possible/needed/unneeded to disable Windows XP defragger, or you just stop using it? (Silly question maybe)

If you use JkDefrag I guess you already know, but in case you dont:

Is the increased speed the only advantage of stopping my Nod32 before defrag? If so I think I just leave Nod running. (If I was to stop Nod, then I also would have to disconnect from internet.)