There is an update on the RiP Dev Blog which confirms that they are in the final stages of fixing the UI for the new version.
Here is the full quote and screen shots of Installer 4.0
Hi folks! Many of you are wondering what’s up with Installer 4. No, we haven’t slowed down the work on [...]

For users who have updated their iPhone to firmware 2.0 and unlocked it with Pwnage, you must be missing the Installer app which we have grown to love. Instead you get Cydia which is pretty good but somehow lacks the charm of Installer.
Well, here is an update from the guys who are developing Installer 4.0 [...]

After spending 30 minutes taking screenshots of every step of unlocking my iPhone, my brother sends me this link. A detailed step by step guide of the exact same thing by the folks at iClarified.com.
They have done a really good job of explaining the procedure with screenshots (the way we like it!). Please read the [...]

9 days after firmware 2.0 was released, the iPhone Dev team (bunch of hackers from around the world) has released Pwnage 2.0 a tool which unlocks iPhones with the new firmware.
2 caveats, it works only on the Mac and unlocks only the first generation iPhone. It can only jailbreak iPhone 3G but not unlock it.
Download [...]

It took 74 days to sell the first one million original iPhones, and just 3 days to reach that number with the new 3G version.
In a press release Apple’s CEO Steve Jobs is happy to announce these figures and adds “iPhone 3G had a stunning opening weekend,” and “…the new iPhone 3G is clearly off [...]