VX's booking engine sucks. I selected an outbound, then on the next page where I selected my return I had to reselect the outbound because it doesn't automatically select it.
Worse, they don't tell you the total price including taxes and fees until the last page of the booking process. You have to give your name, address and phone number before they'll tell you what the final price is.
I hate airlines that try to scam people with this tax and fee obscurity.