Progress 1/27/05

Done:
+ update drafted paper
The paper has been revised in section 1-4.
- The symbiotic behavior names have been changed (fig 3,4)
- Healthy level table has been added in the platform attributes section
- I rewrite the section 4: symbiotic network.
- I also added the related work section in the drafted paper (section 6)
* The simulation part need to be added soon. I am waiting for simulator
programming.