need help uploading theme to ps3|General Discussion|Forum|PS3 Themes

howdo
was wondering if someone could help me, for some reason i cant upload my theme to my ps3, i have created a folder in the usb as PS3, then a subfolder THEMES and uploaded the theme to that but when i try to install the theme it says there are no themes, the theme file is a p3s file and the usb is fat32 formted, what is also strange is that it will not recognise a downloaded theme either, but when i download the theme directly from the website via my ps3 browser it fine, have tried several flash drives but keep getting same problem, has anybody got any ideas cheers