[Bungleau]

You can actually climb down ladders. Check the (you guessed it!) best tips thread for details.

Basically, by looking at the sky or the ground, you back slowly onto the ladder and then you will go down it. Personally, I found it one of the biggest pains in the asterisk in the game. At higher levels, I'd just jump -- one or two points of damage after Ishad N'ha generally doesn't matter...