All I did was follow this thread. Step by Step on how to root using Manualnooter 4.5.2
You do need to burn an image of ClockWork Recovery to a SDHC card. There is a link to the file in the above instructions. Here are the commands you use in Terminal.
For Mac Users:
Open a terminal window.
Find which drive the sd card is mapped to: type in the terminal this:
Be very careful to identify the SD card and not your hard disk. Be VERY careful.
Now unmount that drive typing this:
diskutil unmountDisk /dev/disk#
(My computer was disk2 replace # with your number. Do NOT use the disk#s# )
The computer should say: Unmount of all volumes on disk<#> was successful
Type this to copy the file over to the sdhc card:
dd if=/path/to/4gb_clockwork-126.96.36.199.img of=/dev/rdisk# bs=1m
Everything needed should copy right over to the card.
TIP: drag and drop the image file from your finder into the terminal window, and the file path will fill in
TIP: you must replace "/path/to/" with the path where the auto-nooter image file is located (do not type "/path/to/")
On my 4gb class 4 sd card it took 10 minutes or so to burn the image.