Cliff Help!

[Quazaka]

So i am a very beginner to map making, (over all everything)

But first i want to start out with the terrain.

Ive read all the sticky topic in here and downloaded the ultimate terrain map with the 900 doodad, and the "hack" for the world editor.

Now comes the problems i don't know how to solve my self.

the first picture is 2 cliff near each other, i want to know how to raise a cliff without it deform under its way up, so i cam make one high cliff with free fall on all 4 sides.

the picture show what i got and what i "want"

Picture

this is what i got
http://img19.imageshack.us/img19/4332/whatigot1.png


this is what i "want"
http://img709.imageshack.us/i/whatiwant1.png/

My next problem is now, that i want to add a doodad to the wall, but can't place the doodad close enough, to make it look like it "is" the wall..

again 2 pictures

picture

what i got
http://img696.imageshack.us/i/whatigot2.png/


What i want
http://img651.imageshack.us/i/whatiwant2.png/

I would love if some of you would help me out!

if you don't understand my bad English or just not my problem, please let me know!

Thanks in advantage!