I took free wordpress theme and look what happened http://thegreatestblog.totalh.com/ menu bar is too much above Perhaps someone knows whats wrong?
You could use a margin-bottom: -30px; type thing to bring the nav containing element down some... This is assuming you know at least basic CSS (also, that 30px is a rough guess , and not a calculated value at all) I also have no idea if this would break anything else on the page. But your problem is most definitely an alignment problem with the nav's containing element.