Just because you're still running the stock rom doesn't preclude you from having clockwork mod recovery, when you rooted an app called "Superuser" should have been installed on your device. Also you may have an app called "Rom Manager" installed as well, if you don't have that one it's free in the market (and I highly suggest getting it, it is very necessary). Check to see if you have the rom manager app and let me know, if you don't, then download it from market and post back. I'll help you get clockwork mod recovery up and running, then we'll get you a basic understanding of all its functions. After that you can back up your device and get you a custom rom installed.
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