Different interface

Hello, I’ve been using blender for almost a month and I’ve viewed a few tutorials for particle simulations. As I was viewing the tutorial I realised that my interface was a bit different.

Here is a screenshot of the interface from the tutorial.
http://img223.imageshack.us/my.php?image=screenhunter060ez7.jpg

And here is my interface from blender 2.42
http://img89.imageshack.us/my.php?image=screenhunter061el2.jpg

If anyone knows why mine is different, please let me know.

Thanks,
~Hitekson

Particles are a subcontext of the Object buttons. In your screenshot, above the Objects and Links panel there’s an orange-and-red button that looks like fire. Click that to get to the Physics buttons, which include particles, fluids, and softbodies.

I see it, thank you.