Nyah, clueless, clueless, clueless...this is why topics like this one should go in the Strategies and Movesets forum. -.-
First off, Sunnybeam Vileplume sucks and Miracle Seed is a joke. A 10% bonus to Grass moves means absolutely nothing compared to the HP recovery provided by Leftovers. Also, while Psypoke is a good source for learnsets and suchlike, their movesets, with all due respect, tend to suck pretty bad, and their EV spreads are defficient, so I really wouldn't recommend that site for actual movesets.
As for a proper Vileplume...well, the dead standard one is a walling cleric type:
Vileplume @ Leftovers
Nature: Calm
Magical Leaf
Sleep Powder
Aromatherapy
Leech Seed