I don't think I'd be the best teacher for MTT, I think I get fairly lucky and I play quite tight and hang around the middle until I decide its time to make my move. I'll usually start playing more aggressively once the field of players is lowered, sometimes I get burnt by my play, sometimes it's more rewarding.
I'm still learning as a player in MTT, something I'm trying to work on in my game is not getting attached to my AA, KK, and QQ too much, too often I find myself in a bad spot with these hands forced to make tough calls as opposed to folding.
depends on the day for the daily freerolls on Party Poker, some days I see about 2000 people registered in the tournament other days it's about 1500.
I really liked the articles here for the SNG's I read them through a couple times to get a good base, but I do play a bit looser than the majority of the guides recommend and I find it suits my play alot.