Well done K33nan...and welcome to the world of online poker. In 2 or 3 years when you've not left the house for 4 days and are beginning to smell you'll regret this day
I won't go into too much detail just now but a few general tips:
Be selective with the hands you play - in the early stages of the tournament while the blinds are low in relation to your stack size look to limit yourself to playing only premium hands.
Only really consider playing your pocket pairs and big Aces (AJ AQ and AK) initially, and then depending on your position in the hand(ie last to act) you can relax this a little to include suited connectors and KQ, KJ etc.
With hands like AK, AQ, AJ etc - look to raise preflop as the chances are you have the best hand and you want other people to be putting chips in when they are behind. However, if you are called and don't hit a pair on the flop, proceed with caution.
Small pocket pairs - lets say 22 to 1010(maybe JJ) - you just want to see a flop nice and cheaply, so generally look to just call preflop if the blinds are small in relation to your stack size, and if you don't hit and there are overcards on the board and quite a few opponents, its usually best to just throw them away. If there are no overcards, few opponents and no one has bet, you should assess the situation and consider betting at it yourself.
Play your really big hands like KK and AA strongly - make people pay to see the flop(maybe a 4x BB raise) but if someone plays back at you and the board looks dangerous(ie an Ace when you hold KK) then don't get too attatched to them and be prepared to throw them away.
Its usually best just to throw away your Ace-rags(ie A2 A5 A8 etc) - and even if you hold A8-AQ be careful of calling a preflop raise - if someone holds a bigger Ace(ie AK) and an Ace comes then it could end up being very expensive.
If you think you have the best hand, and the board has lots of draws(ie potential straights/flushes eg a board of 2c 5h Jh Qc) then bet strongly(pot sized should be enough) to make people pay to see the next card.
If you progress to the later stages of the tournament you'll need to be prepared to play more hands as the numbers dwindle, and look for good opportunities(ie if its folded round to you and you are one of the last to play) to steal blinds by raising if the blinds are of a significant size.
So...
Be selective pre-flop in terms of the hands you play.
When you think you have the best hand, play it strongly.
Do not get too attached to your hand - even if it looked pretty pre flop, if the board looks dangerous and you haven't improved, be prepared to throw it away if another player is betting strongly.