user18638: I recently bought a BTC-wallet from my friend. It has a cold storage wallet ("Watch only") and a private key (which is a bunch of numbers and letters). How can I use it in Blockchain.info? How do I make (confirm?) transactions with it?

user9876: you question is not clear, what exactly have you bought?
anyhow if you have the private key you can import them in blockchain.info wallet in the Import/Export section. but if you bought it from someone else he/she also has the private key and so the ability to spend the bitcoins.

18638: <p>I recently bought a BTC-wallet from my friend. It has a cold storage wallet ("Watch only") and a private key (which is a bunch of numbers and letters). How can I use it in Blockchain.info? How do I make (confirm?) transactions with it?</p>
 9876: <p>you question is not clear, what exactly have you bought?</p>

<p>anyhow if you have the private key you can import them in blockchain.info wallet in the Import/Export section. but if you bought it from someone else he/she also has the private key and so the ability to spend the bitcoins.</p>
