This kernel enables custom boot animations (/system/media/sanim.zip), adb root, init.d support, runs a script to auto-root your /system partition, and then you're on your merry way
You may need the USB Drivers available here. (Support & Downloads for SGH-I717)
Once the USB Drivers are installed, power off the phone, then hold volume down and power it on, you'll get a screen asking you to hit vol up to continue, do so. This puts the phone in download mode.
Stick the provided pda.tar in the PDA box of Odin3 1.85, flash away!
Install Superuser from the market after booting.
Note that this will increase your flash counter, which is presumably used by Samsung as a reason to decline warranty service (not aware of any reports of this occuring yet...?)
Don't forget the donate link in my signature if you found this useful and want to motivate me to work on overclock/undervolt