Well mainly first I used the windows Vista standard black/dark coloured theme that was hacked into the Win XP pro sp2 I had installed. but that theme disappeared/could not be used anymore after I updated to sp3. Though I did find that there where loads off extra standard Xp theme styled themes in various colours extra from the ones you normally get whit normal XP. I continued to use a black/darkgrey/orange standard Xp look theme afterwards, that one Worked quite nicely aswell. Sadly I have no idea where you might find that colour theme.

Goggle a bit and you might find how to get different coloured standard xp themes.