i'm trying to get the key to enter saarthal (i went to the collage at winterhold) i got the cast mage light spell to pass the test but when i cast the spell i don't get any messages saying i passed, is it im wearing my embony armor?, or is it because i have and big bad orc as a companion??

But on the plus side while in whiterun i used my breathe fire shout on braith (after i saved my game of course) she mouthed off at me saying she's not afraid of you even if you are my elder, after i breathed fire on her she ran away saying leave me alone.

Cast at the floor... that's really all I can think of

Come to think of it, I'm probably not the best person to answer this considering I haven't had much experience with the CoW. For the record, though, I've never had a problem getting in

Just follow Faralda, who will lead you to Mirabelle, who'll lead you to Tolfdir.

you have to cast it on the eye shape seal next to her

http://m.dictionary.com/definition/Collage/?linkId=ibc5yn

i did what you said and now i'm in the collage, i forgot how to enter it because it's been a while since i last played skyrim (i'm now playing skyrim with a female imperial) and i'm doing pretty good.

You cn enter by saying "I am a Dragonborn" then shout...

That's only if you're following the MQ and have been directed there.

All I can think of is aim it correctly at the eye and follow Faralda.

well, the OP said she shouted at Braith

Which was a sodding good choice, i say!

Not to mention Braith even has reasonably polite parents. Pfft. At least Balgruuf's brats have a lazy slackjawed guy for a dad, so the influence is arguable.