they have to provide an internship first, not all of them do, so look it up

usually you have to have a pretty extensive resume having to do with fashion and what not, so put one together

you have to know what your talking about, so know whats coming up in fashion and look cute for the interview

be willing to do anything, say youll make coffee and start at the bottom if you have to because you want it bad and u feel youll learn a lot to benefit your future

you must be a mainstream pretty fashion drone. so dress in stye, and not what u like, do what the magazine likes

and if you get it, its not like on the hills at all.
mtv got her that internship
so you wont be on a computer or answering phones
youll be getting coffee and taking out trash ect
then ull move up to like making copies and getting people things they need, a little more important stuff
still youll never do anything actually having to do with the magazine but youll still have fun and itll be a good exp.

good luck
=]