PS SUMMER GAMES AND OMAHA

so i have been winning 5 dollars a week off these games playing on wed. nite....tooo ez...by the end of the week there are only about 400/500 entrants and the tournie pays out 5 to the top 250...i made the second round of the omaha tonite placing in the top 50, playing just 3 hands...i folded till the money as i dont know much about omaha...watching the game, i figure out that its not worth betting the flop without some outs or the nuts on a straight, flush, or a full house... after the money there were a few all ins for obvious reasons, i hit on 3 straight hands and that was that...gonna reward myself with a nice 50 60 dollar buy in when the games are over...but for now...i need some help with omaha if anyone has any to offer...the second round is on sunday and im having a tough time placing people on hands with 4 cards in the hole, making it tough to gather info or get any reads.

thanks

and gl