Hi
Try useing your red dot finder to put the star marked L in your low power
eyepiece (26mm or so)
http://en.wikipedia.org/wiki/Centaurus
Theres a galaxy just on the edge of your field of view you might pick up If your suburban skies are dark enough .. In the same area see m 83 marked there ..If you can grab this pattern of stars in centaurus ..try to project a triangle with m 83 as its apex .. the base is pretty obvious .. and bump your scope a little east .. you should see this one fairly easy .