i am using interspire since couple of yours i saw abentecart and when i checked demo i liked it

but i wants to ask some questions.

1) how to add product variations ?
2) is there any option to use separate payment method on selected items example: Product A user can buy if he/she agree to pay advance payment, Product B user can avail Cash on delivery payment method on it??

3) i tried to checkout from demo page why it didnt asked me any payment method??

4) customer get email of order ?

5) customer get payment method instructions after placing an order?

6) can we add currency symbol of our choice?

looking forward to hearing your positive response

Thanks,
Addy