Well ... thanks for reply ... it was good ( althought not perferct solution )
I was able to replace Dock shortcut for the one I wanted but it still does not allow to remove unwanted icons. It looks that it force us to have exactly 4 Dock shortcuts at the bottom. Well I could live with that while having control (able to remove) on it would be better.
Thanks a lot.
Look in the market for Home Replacement apps. They allow you to completely customize the homescreen(s) and apps and what it looks like. Most have free versions as well.