my friends dont confuse ics launcher with the launcher from AOSP ICS source from google.
this is the ICS LAUNCHER app from market
trebuchet wont work on miui ...says cant parse app. so i am using the ICS launcher 1.4.0 from market . thats why i didnt want to put links here
just put it in the system /app folder
the link is not working ... pointing to the mediafire page only not to the download pls see to it.
you can do it to 2shared if its fast for you i will make mirrors if others wanted