Psp Help!!!!!!!!

Can people help me find a 2.81 howe brew downgrade or somic and what is DAX's HEN-D can someone tell me and help me i need as much help as i can get because i got a psp for christmas and i only found out you could downgrade it today and i updated it when i didnt know my psp was a 2.61 and i updated it to a 2.81 could someone help me plz. Thanks.

Dont use DAX's HEN-D. Use dark alex's HEN-D. Its a homebrew enabler for you're firmware. Theres nothing you can do right now
but use that.
You can download it at http://dark-alex.org/

How do i use it what does it do and are there any risks if i do do it i need to know everything there is to know what does this program do. And whitch one do i download.!!!!!!!!!!!!