[Plugin: NextGEN Gallery] Were can I find simple straight help sheet to implement NextGen

I was told this is a great plug in!!
I have downloaded the plug in uploaded images & uploaded the player BUT were do you find the straight step by step instructions to get it in a blog, a page or a side bar.

The [ nggallery id=x ] isn’t explained & thus I haven’t made it work.

I have spent over a day in total and lots of stuff but no step 1, step 2, step 3 etc it really should be explained better and if it is were??

please help someone me !!

Dave

http://wordpress.org/extend/plugins/nextgen-gallery/