AD uses different attirbute names from what shows up in ADUC

For the non-LDAP people, this cause quite a bit of confusion.  First name is "givenName" and Last name is "sn."  Street in ADUC is "streetAddress" in AD (of course, there is also a 'street' attribute to add to the confusion!).

There is a page on MSDN  that explains the mapping; this link is your friend.

By the way, ADUC is now a word in my vocabulary.  It is pronounced "a duck."  I recommend using this pronunciation.