Published: Tuesday, 8 May 2007 | 7:58 PM ET
Level 3 Communications: "This is so right...I want to back up the truck on LVLT."
Gmarket : "I'm in the 'don't buy' camp on this Korean eBay. I'd rather own eBay itself."
Hansen Medical : "You're ringing the register right here. I am saying that the gain has been made. Let's get out of that stock."
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Hansen Medical, Level 3 and Gmarket...Investing can be confusing. Luckily, Cramer has mapped out some road rules for all you Home Gamers trying to navigate the jungle that is Wall Street. Think of it as "Mad Money 101" –- some fundamental advice to keep in mind as you play the market. Whether you're a first time investor or a seasoned financier, it's always good to remember the basics.