It is the cufon style rule that seems to be the place where you need to make your changes. The current rule is:
cufon {
display: inline-block !important;
font-size: 1px !important;
line-height: 1px !important;
position: relative !important;
vertical-align: middle !important;
}
If you add:
margin-top: -20px;
you get what I think you want.
Goodness only knows where this style is defined, though. Firebug says it's defined in the HTML file, but I couldn't find it.
So, an alternative is to add that style rule to every instance of the cufon element. It already has some inline styles which, I guess are added in JavaScript. Maybe you could do the same for the margin, by messing with the script.
Messy!
Cheers
PAE