introducing the SE theming kit for SE 4.6, 4.7, 4.8 and 4.9 phones with a 240x320 px screen .
It contains Photoshop templates for the main screens which may be helpful for sketching your theme as well as PSD files for all single theme elements in order of their appearance in the Themes Creator. Last but not least there is the "Before_you_start.jpg". Please read it carefully before you ...ehm... start.
Download (sorry for the external link, forum attachment didn't work for some reason)
Get the latest version of the Sony Ericsson Themes Creator tool here.
To skin an SE phones' Media Player Background, you need the Media Player Skinner tool developed by Lionet .
A tutorial how to use it can be found here.