A KaiDomain SKU number doesn't match the "productid" number that is in the URL address.
The best way to retrieve a KD product for which you have the SKU number is to use "KD SKU: SXXXXXX" for a google search (replace XXXXXX with the appropriate number. ie: "KD SKU: S008962")
The google seach works great with dealextreme sku too. ie: "DX sku.XXXXX"