PSP-Messenger allows you to access Yahoo, AOL and MSN messenger services on your Sony PSP for free. Keep updated on the official Website of PSP-Messenger. This is easy to use and works well on PSP. It also works on PC if you want to test it first.
How to Install PSP-Messenger:
1.Download the file
2.Right click it and press unzip
3.Plug in your PSP
4.Open the PSP memory stick folder in my computer
5.Press the folder "PSP"
6.Press the folder "COMMON"
7.Drag the unzip folder to "COMMON"
8.Wait for it to load on to it then unplug your PSP
9.Open PSP Browser
10.Type in: File:/PSP/COMMON/PSPMSG/index.html