I can't really watch a video right now (at work
) but I can tell you it's really easy to do. Just go into recovery mode (NOT service mode) and use the restore firmware option to install the precompiled PUP from the thread I posted above. Once you are back into the normal XMB, go to Game and then choose Install Packages to add the Hermes v4c payload (also attached to the post above).
Select the payload from the Game menu and hit X to load it. Your PS3 will flash a blue screen that says "Payload Loaded" and return to the XMB. It is now in JB mode.
Make sure you put the files on your flash drive like this:
X:\PS3\UPDATE\PS3UPDAT.PUP -> Hermes CFW
X:\payloadhv4.pkg -> Hermes Payload