Okay. First up, install Astro from the market. Next up, check the "allow unknown sources" button in settings> applications> so you can install z4root.
Now, download z4root from here -- you'll need an account.
[APP] z4root - xda-developers
Open Astro, navigate to the download folder and find the z4root apk. Press it and you'll be given the option to install it. Install it. Now run it and root your phone.
Congrats. Now, moving on, go here and follow these directions.
http://www.droidforums.net/forum/ha...hat-n00bs-guide-post-root-22.html#post1070921
Please ignore the numbering mistake in step 8.5 and please don't be offended if it sounds over-simplified. The instructions are pre-release for a method I was working on before 83D plugged the z4root hole, and as such aren't totally finalized.
Let me know if you run into any problems!