Percentage of starting hands in lmit Omaha (high)

[Poker Clif]

I played Omaha for the first time last night. I am almost exclusively a NLHE player.

I didn't know much except that you use three hands from the board and two from your hand. I found a site online with a few basic strategy tips, and scanned that a few times while I was playing, until I got the feel of it.

It was a PokerStars freeroll tournament, and I placed 65 of 2,794.

I couldn't get a sense of what percentage of starting hands I should be playing. I saw the flop 50% of the time, but even so, I was playing few hands than most of the table (9 players per table). It was not a turbo.

I was often the only one to fold after the flop, and at least three times I was the only one that didn't see the flop.

Were these players just nuts? Was I too loose? Are both true?

Even after the first hour, I sat at tables where 7-8 players were seeing every flop.

Any guidance would be appreciated.