Placasoft has released PSPsetX version 0.3b, with a new bugfix in the source that was not included in the version 0.3 released earlier today. PSPsetX is a great utility for the PSP, which now supports firmware 2.0 PSPs. Version changer functions have been now added, allowing you to 'change' your firmware on the System Settings screen anywhere from 1.00 to 3.00 (and possibly play 2.5/2.6 games on 2.0. Remember, using this utility is putting your PSP at risk, so only use it if ya really need to, and understand the possible consequences.
Download PSPsetX 0.3b For Firmware 2.0 PSPs from PSP 3D
here.