New ROM ver2. Running Software

Hi.  I don't know how to describe but here is my problem.
I had opened the internet and reading MSN news for example and used "hang-up" button located on the down right of the phone because I just received a text.

Read the text msg, now, what button do I need to select to go back to the web page I was just reading?

The older ROM has a bars on the top right and when you click on that you can see all apps that are opened and you can close each one but for the new ROm I cant see this option anymore.

So I had to open the Internet again and find the webpage that I was reading.

Any help will be appreciated.
Thank you.