Mine took a minute or two around 9:00 this morning, I'm sure it can take longer. As long as you've recorded your order number from the order confirmation/download page, I'm sure you can get your serial numbers again by contacting customer service if the email never arrives.
I received my serial #'s within a couple of minuets, no trouble at all.
I was also able to download every file from their website with no trouble at my full bandwith, about 1.2 MB/s. It turned out to be about 270 Megs with the sample CD included. They must have pretty good servers...