Hi,
If you upgrade to DNN 07.03.03 and you try to edit a product in SmithCart, you may get this error:
InnerException:Telerik.Web.UI.RadTabStrip with ID='RadTabStrip1' was unable to find an embedded skin with the name 'Vista'. Please, make sure that the skin name is spelled correctly and that you have added a reference to the Telerik.Web.UI.Skins.dll assembly in your project. If you want to use a custom skin, set EnableEmbeddedSkins=false.
This likely has to do with an older version of SmithCart (just guessing) in the latest DNN.
You can temporarily get around this error if you enter this value into the appsetttings section of your web.config file...
<add key="Telerik.EnableEmbeddedSkins" value="false" />
You will lose the nice buttons in the admin area, but you can then edit your product.
I am just posting this as a workaround for some users that may get stuck with not being able to edit a product.