Man do i need help!!!

ok i am new and i really need help! Meta name-keywrds.Is my landing page set right? i get no commemt section on my blogs which i have posted. That is just a start. Tried vid tutorials but the code on my header.php is different. Is it reallt that difficult to change fonts by that i mean for the whole site. below is what my header looks like in appearance/editor.
I am using flexx.

[Mod Note: Code segment removed. If you want to post large blocks of code, please use a pastebin. Thread moved to themes section.]

i need to get this going for a client so i am under pressure. Help willing to contact walk thru anything
thanxs