Your first question was answered by your next statement -- you can use Turbolister to upload your listings to eBay, although to clarify, you're not really uploading listings to your eBay shop -- you're uploading your listings to the eBay site in general, then all of the listings you have on eBay will also appear in your shop.
You can obtain product descriptions and images from your dropshipper's website in most cases. You can right-click on each image to save it to your computer, and then upload it to Turbolister or the eBay selling form right from your computer.
As far as the descriptions are concerned, most of the time, dropshippers will allow you to copy and paste the product descriptions from their website right into your eBay description, although I wouldn't necessarily ONLY do that, since most supplier product descriptions are pretty lacking. I would add a lot more to your description besides just what you get from the dropshipper's website.
For more information and details on this process, please read my recent Salehoo guest blog post on this topic:
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