Help with plugins

I have a PSP 2000 running 6.60 Pro B-10 LCFW. I tried to add the CXMB and Custom Firmware Extender plugins onto my PSP. I have everything in place on my memory stick and my VSH text file has the path to both of the plugins. When I look at the plugins settings on the recovery menu, they are both enabled but my PSP still won't let me add custom themes and when I hold R and press the little music note button CFE's menu doesn't show up. Do these plugins even work with PRO B-10 or should I switch to ME.

open it with notepad n double check

notepad