Actually, you know what. Since you have a stock R2-D2 phone, could you check for me, whether the Need For Speed: Shift app is a full version or just the demo?
That's what my guide is about. When it says "install any 2.3.0 rom, I used fission" just go find whatever droid 2 rom install guide you want and install it. Just make sure it's not a 2.2.x based rom.
The link to my guide is in my previous post in this thread.