No problem. Just in case you don't get those BTC, I just sent you some to that address to play around with or buy a little something with. But hopefully, you'll end up receiving both transactions.
Check out electrum or multibit, they're both fairly easy to use. Be sure the password-protect your wallet with a long password (write it down somewhere!). If you do continue to use blockchain.info be sure to enable 2-factor authentication and use a strong password.
I need to make one correction to what I wrote above. In my haste, I accidentally called your Bitcoin address your "public key". Actually, your public key is a related but different concept. Properly said, the string that starts with "1" is just a Bitcoin address.
Anyway, just wanted to correct myself that those are two different but related concepts. This has no impact on your use of Bitcoins -- just use the one that starts with "1" to give out to receive Bitcoins. Most programs won't even show you the public key I'm talking about, so no need to worry about it.
Check out electrum or multibit, they're both fairly easy to use. Be sure the password-protect your wallet with a long password (write it down somewhere!). If you do continue to use blockchain.info be sure to enable 2-factor authentication and use a strong password.