I've already rooted my phone, but not with the unrevoked method, I rooted it before that came out when it. Do I have to do anything else, or do I start at step 1 even though I am already rooted? Will anything weird happen if I try and root my already rooted phone? I don't have clockworkmod, just Superuser.
I am not sure this method would work for you. Although I know on the Unrevoked website they have links for the ClockworkMod and Amon-Ra Recovery system, so you could try loading Forever and see if it works and then go back to Stock Recovery and then load the update. But again I am not sure this would work and I can not recommend it, since I used the unrevoked 3 method. You may want to check around the forums and also at XDA and see if there is another way to get the update and still maintain root.
Sorry...wish you the best of luck...

Muchos gracias!