Here is how you use market samurai for free forever.
My method will help you to get market samurai free without losing your data. This will also help the people that are not able to get the 40 days trial extensions because there is no activation emailed to you.
So here goes.
Tools needed: None
Step 1: Clear your cookies
IE: Options -> General -> Delete Browsing History, choose cookies.
FireFox: Right click on Market Samurai's website. View Info - > Securities -> View Cookies -> Remove Cookies
Chrome: Settings -> Options -> Under the hood -> Clear Browsing Data -> Delete Cookies
If you have chosen Ed Dale Challenge before, you might not need to clear cookies (someone need to confirm this)
Step 2: Register your trial using a new email account and choose Ed Dale challenge at How did you hear about Market Samurai.
If you are unable to see How Did you hear about Market Samurai, you need to clear your cookies.
Step 3: Delete the activation key inside your computer.
C:\Users\[account name]\AppData\Roaming\MarketSamurai.[a bunch of numbers]\Local Store
C:\Documents and Settings\[account name]\Application Data\MarketSamurai.[a bunch of numbers]\Local Store
If you are not able to see folders like AppData, press alt->tools->folder options->view->show hidden files and click ok.
Step 4: Open up market samurai and enter the new registration that you got. If 40 days expired, repeat from Step 1.
Step 5: Enjoy.
You will be able to see the number of trial days you get at the bottom of the internet browser right after you register.
Use disposable email sites to get new registration for market samurai!!