Nice guide diztorded but I think you'll like this better...
http://www.eq2interface.com/download...fo.php?id=3936
This gives you crosshairs with the /loc of them. you paste the map onto the background... resize however you want, then use photoshop to get the pixel loc of the crosshairs and enter everything into
tacomans calc and you got a really solid zonrect.
Then if you have to slice a map in half..
http://www.eq2interface.com/download...fo.php?id=4162