according to the other thread in XDA you extract the zip into the root folder of your SD card and then run haret..
"How to Install and Run.
For install:
- Download latest build below [Post 4].
- Unzip the contents of the .zip file.
- Copy All contents of the unzipped file to the ROOT of your Storage Card.
It should look like this.
/Storage Card/
/AndroidApps/
/conf/
/media/
/DEFAULT.TXT
/dm.txt
/haret.exe
/initrd.gz
/rootfs.img
/smem.txt
/system.sqsh
/zImage
To run Android.
- Browse to your storage card again and open/run the file Haret.exe.
- With haret running, click on "run".
- Wait a while.
"
Everthing in the "" was taken from the XDA Thread.
I imagine the only file you'd be replacing is the one linked in the first post. ANd viola.. im at 90 percent done soo ill post some info later.