As I noticed already before in the 6.39 ME-8 release thread; Neur0n has released a POPSLoader Patch for 6.39 ME-8 which makes the PRO POPSLoader compatible with his new Custom Firmware!
Note: You need the "New popsloader for PRO" which you can find here!
popsloader patch for 639ME-8
-- What is this? --
This is a patch plugin for ME.
It allow to use "New popsloader for PRO" on ME.
-- How to install? --
1.Install "New popsloader for PRO" in your Memory stick.
2.Copy pops_bridge.prx at memory stick and add plugin path at pops.txt .