Ok, placing in freerolls is tough, i won some of them but for very small amounts of cash, I suggest you play on interpoker oin saturday nights, they have a great freeroll, 1.5k entrants and winner gets 600 dollars they also host daily freerolls of 500 entrants with a 300 prize pool.
I recomnd you use this site and choose the best ones http://www.thepokerplaza.com/dailyfreerolls.html
-anto