[When not to energize a sector]

I'm not sure if this question qualifies as flying star, 8 mansions, or what...
I have heard that each year there are a couple of sectors that should not be energized because of the presence of the #5yellow and #2black stars which bring with them bad luck, loss, and illness, etc. For the year 2001 I understand the infected sectors will be the northeast and southwest (my two best directions being 2 a soil person... darn!).
What I would like to know is what reference material can I obtain that will map out the course of these "stars" for upcoming and past years? I would also like to understand why it is that the 2, and 5 bring with them negative effects. Some history.
Thanks!
Tufani
http://www.tufani.com

[Missing elements in a name]

Hello all, This is an excellent forum.
What an oasis. I have a couple of queries
on this subject matter.
My name (Tufani) means "tempest", or
"storm". I was born on a day of yin water,
but my element according to my kua
number is yin earth.
1. Is the energy of the name determined
based on its linguistic meaning?
2. The personal element that the name is
compared with. Is that "personal
element" based on the day that one is
born, or based on one's kua number?