[SOLVED] I figured it out
What I didn't know was that xfce4-power-manager is a dialog menu. So I opened it's dialog menu and enabled all the necessary options and it was everything I was looking and it works.
So what I did was remove gnome-power-manager as it was only a dialog menu that displayed power information which is the same thing xfce4-power-manager could do aswell.
so now what i have is the following packages:
pm-utils (for hibernate/suspend in logout dialog menu)
xfce4-power-manager (hibernate/suspend preferences & battery/AC configuration)