Noise when turning sharp!?

Hey,
 
I just bought a Blazer from my best friend the other day and its got some problems that I need to fix.  Yesterday when I was driving it, I noticed that everytime I turn sharp it makes a creaking noise.  I thought it was the swing arms, but I'm not that "car savvy".  My buddy said I should check my bushings or whatever.  Seeing as I've never had to work on my own car before, I have no clue where they are located.  If you guys could help me out, that would be great!  Thanks.

There is a difference between a creaking noise from metal to metal contact & a bushing creaking so listen closely.

The bushings are just rubber spacers.  You should have four, on the a arms.  (connect the hubs to the frame).  The shocks, the sway bar, I don't remeber if the torque arms have them or not.  Things like that.  I may help to have someone on the bumper bouncing while you look at it.  That may be enough to hear it.