For those who still can't see the site (and the erasing your cart issue) . . .
First of all, if you get to the site and just see black boxes, it is because the site is a Flash site and your computer has an older version of Flash and can't read it. Here is a link you can go to get the latest version: http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash&promoid=BIOW
Or you can try: http://www.jennibowlin.com/eco/store.asp which completely bypasses the flash front end.
If that STILL doesn't work, please send us a note with the browser you are using (IE6, IE7, Firefox 1.07, etc.)...
Also, if you are getting the error that erases your cart everytime you click "checkout", try adding things to your cart and then hitting the "update" button BEFORE hitting the checkout button. This should temporarily fix this (until we can fix the error). Thanks for your patience - I know many of you have been trying for days!