Its been a while since I updated this. Anyway, same drill. The latest (as of 25 Sep 2008) GameDB is loaded in. This is a package for the PSP Slim. Just unpack all to the root directory of your memory card of your PSP. Take note of the few *.txt file. If you have other plugins, you may want to manually edit them in instead of replacing it. Especially GAME.TXT, if you are a big fan of mine, then you will probably have the USB Charge and the Save state of the 4.01 FW.
Here is the download :