Pretty basic concept.  You put in Joe Webb, McNabb, AP, Harvin, Shiancoe, and Rudolph.  Those are the players but you line them up in one of two general ways.

Passing formation: McNabb the QB with Harvin, Rudolph, and Webb split out wide.  AP in the backfield.  Out of this formation you have really 5 potential throwing targets and you can still run the football normally.  Webb isn't a true WR so he'd probably be a decoy running a few basic routes to clear out for Rudolph and Harvin.  Thing is that you are almost guaranteed to have a linebacker or safety on Rudolph and/or Webb with this lineup.  The reason for this is...

Running formation:  McNabb out wide.  Joe Webb and AP in the backfield.  Both tight ends on the line.  Harvin playing slot and/or motioning through the backfield or even starting in the backfield.  Power football.  This type of lineup would be hard to defend with a two corner, two safety look, and because of the versatility of the other players you practically force the opponent to line up this way.  If they come in heavy then they run the risk of trying to cover Webb and Rudolph both with safety/linebackers.  If the DE crashes the run they risk getting burned by Webb on a roll out.  And you can still run a generic play action out of this formation as you have Harvin and Rudolph as deep target options or Shiancoe working the middle.  Or you can run the wildcat and likely most the attention is on AP. 

Note that you could interchange different players.  Like you could use this formation to rest AP and use Toby or Booker.  Or if you wanted a heavier running look you could put in Kleinsasser or Dugan.  You could also use a bigger WR instead of Percy if there was an undersized corner to force a matchup on.