No, u cant change places bar text.
Couple of things I'm wondering about, 1. Why\how is the infopane below the commandbar (if it is via AVebuilder, you were correct in assuming that virtually no one will be hacking their .dll's to accomplish that so make sure to design the infopane for bottom of window use) and why the large void either side of the programs menu text entries... lastly, how does firefox\ IE look
The theme is good for your first skin, I don't personally care for the menus \ menu mousovers, the light grey to black of the mouseover is way too drastic imo. and the large strips on the left side of menus will lead to issues in some menu's \ apps.
I also agree with IR, the alienhead is rather an old idea and teh rest of the theme doesn't really scream Alien. A second sub. with a more standard button might serve you well.
Could be super nice for a first skin, keep at it Hope you don't mind some simple critique from a fellow skinner.