Problem when modifying theme

[fwm]

I'm using StyleBuiler, to modify some themes for own use! I usually modifying the progress bars to show one solid, instead of individual chunks!

But when I import a theme, change two values and modify the images, compile and run it, the 'common tasks' in explorer(the left frame with panes like File and Folder Tasks, Other Places and Detail), does not apply the xp style, but only shows in borring Windows Classic style!

The same thing happens when I import a theme, and just compile it right away without modifying anything.

What can I do to prevent that?

Thanks in advance yo