Multiple vendor site

[DeepaVaith]

Hi!
  I'm setting up a multi vendor site which should go live in the next week to 10 days.
The BIG problem that I'm having is that email is not being sent to the vendor from
whom the user buys items.   Can someone tell me where I should change this?
I am trying to change it in function plgVmOnPaymentNotification(),
shopFunctionsF::sentOrderConfirmedEmail by sending the vendor email too.
 
  The other problem I'm having is where can I remove items from the cart.  I
do not want to empty the cart-just remove the few items that have been paid
for.

Thanks,
Deepa