Would appreciate if someone could interpret the status of the transaction on blockchain

I bought a bitcoin on ebay, gave the guy my wallet address and it transferred to my wallet OK. This is my first transfer out of my wallet.

Would it be something to do with not having set a fee?  Blockchain seems to say there was no fee. It has taken more than hours - as you can see from Blockchain it has been over 2 days now.

I use bitcoin-qt wallet and purchased a bitcoin. I made a transfer around 2 days ago and it is still listed as unconfirmed. I looked up the transaction ID on blockchain but I'm not sure what the results mean. Any help appreciated!