It's all good. If I were you I would go back to the guide, the Life after root part, and go to the directions for changing recoveries.
Not sure when you rooted, but Revolutionary put Clockwork Mod Recovery on your phone, if you let it. The directions give you the file and directions to change to Amon Ra 2.3 recovery. One most of us find to be more reliable in many ways.
Once you get that on, let us know and someone will help you flash a new rom, either the latest updated stock or an even better one, imho, Mikg3.0.
Let us know if you have any probs, really, it is step by step in the directions, but any probs, someone will be here to help!
Only stupid question is the one you don't ask, so feel free to use and abuse us!
edit: Especially Granite, he's like that, you'll see...