Noob questions...

Hi all,
I have been reading through many of the posts on this forum and have a couple of questions:

Could someone explain to me ( in plain english please :) ) this:
I know its a wheel configuration, but what do the numbers mean? ( there is a whole language to be learned here I know.. I'm getting there. ) The glossary helps a bit... but not for everything yet. :)

Another question is the LottoDesignerXL software.
Under "M" section it says " This is the Maximum Drawn from the barrel " I'm not sure what this means exactly...

Thanks for the help!