THEme Editor for WD Abap

Hi folks,

i know many posts have been about that but i have once more a very question, we use NW2004s with EP 7.00.

I made a Theme with Portal Theme Editor, now i can export this but i'm not really sure how to import that theme into the mime-repositiory. Somewhere i read that i have to copy an existing theme and replace some files.

a) how to copy the theme? i did not find a function???

b) what files do i have to replace, i cannot find any .css files in the exportet theme zip file.

any help is really welcome,

kind regards

oliver