> I've been trying to move the title of our blog around a bit by
> adjusting the top and bottom values in style-core/header/blogtitle.
> I've run into a dead end in being able to bring the title closer to
> the top of the header image.  If anyone can tell me if I should I be
> looking for other values to adjust, I'd appreciate it.
You've looked in the right place first, but there are some other places 
you can check...
1) You've already found the #blogtitle stuff in style-core.
2) #blogtitle is inside #header, which has 15px of padding which is 
legacy cruft from when the text wasn't absolutely positioned.  I haven't 
pulled it out in the stable branch because I didn't want to mess with 
the stable positioning scheme there, but it might be what's preventing 
you from pushing closer to the edge of your header image.
3) You could also try negative top margins in #header or #blogtitle to 
push things higher if you can't get what you want with absolute positioning.
Note that anytime you're troubleshooting CSS, the Firefox DOM inspector 
is an invaluable tool and would have told you everything I just pointed out.
Thanks,
Mike Lococo