Sounds like you were lucky, Iconn . . .
Not to sound cynical, but as any hooker knows, sometimes you have to take the bust as an epense of doing business. It's part of the game.
Seriously, it sounds lucky that your stuff was merely seized rather than allowed to go through to you, after which you might have had a knock on your door. As long as they're not taking steps to track you down and bust you, I wouldn't sweat it.
However, that does not mean that you shouldn't be careful. (Or, in the words of the old expression, just because you're paranoid doesn't mean that they're not after you.) Even if you used another name on your order, anyone can "reverse" an address and find out who the real resident is.
Incidentally, the law under which they seized your shipment is just that - a seizure law, and the part they cited deals with "a controlled substance, as defined in the Controlled Substances Act (21 U.S.C. 801 et seq.), and is not imported in accordance with applicable law." The full text can be found by going to:
http://uscode.house.gov/usc.htm
Just do a search, without quotes, on "19 USC 1595a(c)(1)(B)" - that will lead you to a search list that contains the text. (I'd print the actual URL here, but it's waaaaaaay too long.
In other words, the stuff was seized by the U.S. Customs Service, not by the police (or any other type of narc). They are concerned with the customs and duties aspects of the shipment, and may not be interested in busting your ass the rest of the way. Moreover, due to 9/11, they are being much more careful about shipments coming into the U.S., so this is not the best time to be, um, importing.