Doh! I should've known that one--didn't put the abbreviation together with the title there :) Glad you mentioned that, though--that's another one I should keep an eye out for when I go to the store Thursday.
No, you shouldn't. Eva's really a "watch the anime" or nothing, the manga's for fans of the anime. And you'd better be prepared to shell out massive bucks for Eva the series, followed by Eva the movies which have the "ending real people understand".
And if you do ask, it's Ay-vah.