Implementing Google Adsense

Hey guys, I need help badly.

I just decided to add Google AdSense to my blog. I do not understand what the Channel is for when it comes to the Google AdSense for Content. I have already done the steps for that and the Google Search too but my problem is cutting and pasting the Code in the HTML.

Which page do I paste the code, is it the one for my blog?
I did that but the code refuses to paste.
Even with out pasting I have started to get Google Ads on my blog but I dont know, since I never pasted anything like they said
I also tried doing the Google search copy and past too, but its not showing.

So i went back to my blog and went to the setting to add Google search, its now showing but I realized its different from my Google AdSense. Pls someone help me out.

I have used Google AdSense Help, and it not helpful at all.

Thanks.

Thanks,  I understand what you just said. I applied for AdSense on it own through Google and I was approved. But I applied again with the Blogspot and I am awaiting approval, I am using the same email and everything. Hope this is not going to cause any problem?   

I guess this is coming late but i an sure the second account was rejected. you don't need a second account but if you feel you need a second one maybe for your business, you can get another one using a different email and a different address and you must make this account a business account. I don't recommend it any way. You should try using a different adsense code and custom channel for any special business purposes. You had better read the google adsense policy to understand the do's and don't's to avoid getting your account suspended or banned.