Usually, you will get a confirmation e-mail when the payment is accepted, and another one when shipped. I should have been a little more clear -- leetmod sent me a confirmation immediately after payment, then another one later the same day when it was shipped.
If the site you've ordered from is anything like others I tried, yours probably hasn't been shipped yet. You should send them an e-mail asking for status. I had previously ordered from two other places and both of them did the same thing. When they didn't ship after a few days, I sent them an e-mail asking for the status of my order and they told me it was out of stock but that they would get more in "a few days." Once "a few days" turned into a few weeks, I canceled the order and went to leetmod. Leetmod doesn't show items that aren't in stock, and shows you exactly how many of each item are in stock.
By the way, I don't have any affiliation with leetmod whatsoever, but I was impressed with their website and the fact that they answered their e-mail in a day. Of course, that could all change if they ever become very popular.
-Bri