Simply put the .ptf file inside the "/PSP/THEME/" folder of your PSP Memory Stick.
To apply the theme on your PSP, go to "Settings" => "Theme Settings" => "Theme".
Enjoy this hot psp theme for your console!
Is this not what you are looking for?
Request the theme
and we'll upload it ASAP! Don't hesitate!
It's free!
Login & Password
Login:
Theme/code request form:
Request the theme/code Now!
Registration
Register:
You are not authorized to access the files
(Hustle Stewie.ptf)! Please,
register (this will take you less than 30 seconds) or login to access the full set of
games, themes, wallpapers and codes.
Be sure that your browser supports cookies and that the cookie support is
enabled.
Themes
Last Updates 
Tekken Theme
Report Bug