Hi Eri
Sorry to say there is no real way to control how your menu items are aligned. I would suggest to try and keep your menu item lengths proportional so try to avoid having all the long menu items on one end of your menu.
On a side note I notice your menu items are not clickable. To resolve try adding the following to the Custom CSS field of your templates parameters...
h1.logo-text {
text-align: center;
}
h1.logo-text a {
display: inline;
width: auto;
}
Ciarán