I know many people use walkthroughs but please do not use them till you are really confused of how to win and once your done with the confused part skip the video and do the game all by your self and dont use a walkthrough cause then the walktrhough squeekzs all the joy and fun of the game!
Walkthroughs shouldnt be used on flash gaming especially considering how easy most of them are, it just takes a while to think about it. if your really stuck then go away and come back to it, 8/10 times you'll fail cause youve just spent 8 hours looking at a bright screen into the early hours of the morning, which is well known is a killer of concentration, if you come back to it and still cant figure out what to do then check the walkthrough but scan it, look at the start of walkthrough, give yourself a tip then try and figure it out from there.
i only use walktrhoughs when i absolutly have to, like on mirrors edge(if that wasnt my friends game i would have broke it in two and thrown it out the window)