1) Download Climber sample theme from nokia.com (with your phone).
2) Install it to your phone.
3) Get a good filemanager.
4) Start filemanager.
5) Go to e:\System\skins\"number"\
6) Send Climber.mbm to your Linux etc.
7) Extract bmconv.zip to your working directory, copy also convertpic.pl to same directory (install wine if not allready installed).
8) "./convertpic.pl decompile 361" or use batch files i created (works only with Climber.mbm)
9) No you have 360 .bmp pics in your working directory and you can star to modify pics with Gimp etc. (you can use konqueror/nautilus to browse pics).
10) "./converpic.pl compile 361"
11) Send koe.mbm to your phone.
12) Move koe.mbm to e:\System\skins\"number"\ and rename it to Climber.mbm
13) Now you can activate it thru Themes control menu.


Themes:
Climber-rc3-nc.sis

enjoy.