i think what you are asking is "how do i get an associates degree in rn nursing?" is that right? as i was reading your post, i thought that you were, at first, looking for an online school to do this. your post is really not clear on this. there is no such thing as an rn certificate in the united states.
i'm assuming that the "mt" in your screen name refers to the state of montana. if i'm right, then here is a link to a page on the montana board of nursing that lists the approved schools of rn nursing http://mt.gov/dli/bsd/license/bsd_bo...rd/schools.asp
on the left side of the page you will see that there are 4 colleges listed that offer an associates degree in rn nursing—that is a two year degree. you will notice that the names of the programs are underlined and are links to the websites of those college nursing programs where you can get some online information about them.
if i'm wrong about the state you are in, you can find the aa degree programs for nursing for the state in which you actually live by running your mouse over the "links" button on the top right of this page. a drop down menu appears. click on "boards of nursing". a page of links will come up. chose the state in which you live and click on it. a link to the board of nursing for your state will come up. click on it. when that website comes up, look for a link on the page to education programs or a listing of nursing schools. some sites list this link very clearly. on other sites you kind of have to open drop down boxes and explore around the site for it. if you can't find a listing of schools, get a phone number or address for the state board and contact them on monday morning.
if i am totally wrong, please re-phrase your thoughts and try posting your question again so we can help you get an answer to your question.
i am also giving you two very good links to explore about the career of nursing. it should help you understand the differences between aa degrees and bsn degrees and well as some of the specialties in nursing.
welcome to allnurses!