Trip, I'd say do what you must and learn when you can...
As long as what you do works on most/all browsers.
XHTML 'n CSS is not urgent you learn NOW. I've been told XHTML still has some bugs they're working out... so I donno. I've started converting over a site to XHTML when I heard that so now I'm on the fence on this - right smack dab in the middle of working on that site.
Altho CSS would compliment whatever you're doing (altho not sure if go-live supports it directly).
As long as what you do works on most/all browsers.
XHTML 'n CSS is not urgent you learn NOW. I've been told XHTML still has some bugs they're working out... so I donno. I've started converting over a site to XHTML when I heard that so now I'm on the fence on this - right smack dab in the middle of working on that site.
Altho CSS would compliment whatever you're doing (altho not sure if go-live supports it directly).