This is the update from OE-A to OE-B. 

Place the folder OEB_UPDATE inside /PSP/GAME150 and run it.

The update will take a very little time, since it only updates the files needed.

The new addition of this update is the ability of playing your own psx games, using the provided
tool (popstation) to convert them.

Although, a feature  that was in OE-A and i forgot to comment:

You can use plugins in psx games. Just create a file called pops.txt inside seplugins, with the
path of your modules.