It is not an overnight thing to do well with your own site. I didn't have a sale for two months. .. even though I was writing articles, sending advertising to my ebay customers and had great prices. Slowly, I got a couple sales, wrote more, revised keywords and descriptions. .. got a couple more Currently running free nintendo wii giveway sweepstakes .. . added moderate traffic, slow, but steady trickle of sales. Still not overwhelming, get about 4-5 sales a week but improving. Many quit (I was about to go back to ebay only myself) before they start to see fruits of labor.
mmm,is it your popular keywords on the top in google search? wheth your payment,how about your traffic?there are many reasons for customers.
The main area to concentrate, once the site basics are set up, is to target quality traffic. Promote your site in relevant forums and blogs etc... consider paid advertising or PPC campaigns.